# \[BIP-247\] Enable wstETH/bb-a-wETH Gauge \[Polygon\]

**URL:** <https://forum.balancer.fi/t/bip-247-enable-wsteth-bb-a-weth-gauge-polygon/4606>\
**Category:** BAL Gauges\
**Created:** [April 5, 2023, 2:14pm UTC](https://forum.balancer.fi/t/bip-247-enable-wsteth-bb-a-weth-gauge-polygon/4606 "2023-04-05T14:14:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Llama](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.balancer.fi/llama/32/2387_2.png) [@Llama](https://forum.balancer.fi/u/Llama)\
**Post date:** [April 5, 2023, 2:14pm UTC](https://forum.balancer.fi/t/bip-247-enable-wsteth-bb-a-weth-gauge-polygon/4606/1 "2023-04-05T14:14:59Z")

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> <https://github.com/BalancerMaxis/multisig-ops/pull/137>

**Summary:**

> This pool uses the ComposableStablePoolFactory-v3 1 which addresses the [reentrancy vulnerability](https://forum.balancer.fi/t/reentrancy-vulnerability-scope-expanded/4345) disclosed during February 2023. This gauge is uncapped, and would enter as a “core pool” under [BIP-19](https://forum.balancer.fi/t/bip-19-incentivize-core-pools-l2-usage/3329). This means 65% of 50% of yield generated by this pool is to be used for bribing for votes on it via [Hidden Hand](https://hiddenhand.finance/balancer). The remaining 35% goes to Balancer DAO as revenue.
> 
> The pool wstETH/bb-a-wETH is to replace the [wstETH/wETH](https://app.balancer.fi/#/polygon/pool/0x65fe9314be50890fb01457be076fafd05ff32b9a000000000000000000000a96) pool on Polygon.
> 
> The current wstETH/wETH contains $4,205,133 in TVL at the time of writing and is the largest wETH pool on Balancer’s Polygon deployment.

**References/Useful links:**

> - [Website](https://stake.lido.fi/)
> - [Documentation](https://blog.lido.fi/)
> - [Github Page](https://github.com/lidofinance)
> - [Communities](https://www.coingecko.com/en/coins/lido-dao)

**Protocol Description:**

> This pool utilises wstETH and linear pool bb-a-wETH which deposits wETH into Aave v3 wETH reserve. The linear pool utilises a wrapper developed by Aave Companies.

**Motivation:**

> With the introduction of wstETH to Aave v3, the author expects users to deploy yield maximising strategies utilising the wstETH/wETH loop. This is expected to generate borrowing demand for wETH and deposit APR for those that deposit wETH into Aave v3.
> 
> Incorporating the bb-a-wETH will lead to additional revenue to Balancer DAO and also additional incentives flowing through to Hidden Hand which veBAL holders can benefit from.

**Specifications:**

> 1. **Governance:** Find more information about governance on Lido’s [forum](https://research.lido.fi/).
> 2. **Oracles:** Polygon wstETH Oracle, see [here](https://polygonscan.com/address/0x10f964234cae09cB6a9854B56FF7D4F38Cda5E6a)
> 3. **Audits:** For [Lido Protocol](https://github.com/lidofinance/audits) and Aave v3, see below
> 
> - [ABDK](https://github.com/aave/aave-v3-core/blob/master/audits/27-01-2022_ABDK_AaveV3.pdf)
> - [OpenZeppelin](https://github.com/aave/aave-v3-core/blob/master/audits/01-11-2021_OpenZeppelin_AaveV3.pdf)
> - [Trail of Bits](https://github.com/aave/aave-v3-core/blob/master/audits/07-01-2022_TrailOfBits_AaveV3.pdf)
> - [Peckshield](https://github.com/aave/aave-v3-core/blob/master/audits/14-01-2022_PeckShield_AaveV3.pdf)
> - [SigmaPrime](https://github.com/aave/aave-v3-core/blob/master/audits/27-01-2022_SigmaPrime_AaveV3.pdf)
> 
> 1. **Centralization vectors:** See [here](https://lido.fi/faq).
> 2. **Market History:** See [wstETH](https://www.coingecko.com/en/coins/wrapped-steth) and [wETH](https://www.coingecko.com/en/coins/weth).
> 3. **Value:** Balancer will earn the protocol fee on wstETH yield and deposit yield generated by Aave v3 on Polygon via bb-a-wETH.
> 
> Link to Pool: `0x4a77eF015ddcd972fd9BA2C7D5D658689D090f1A`  
> Link to Gauges: `0x304a75f78C96767a814c36Aaa74d622ECf875d36`

Transaction: The DAO Multisig `0x10A19e7eE7d7F8a52822f6817de8ea18204F2e4f` will interact with the AuthorizerAdaptor at `0x8F42aDBbA1B16EaAE3BB5754915E0D06059aDd75` and call performAction with the GaugeController at `0xC128468b7Ce63eA702C1f104D55A2566b13D3ABD` for the target(address) argument and using 0x3a04f900 followed by the gauge address `0x304a75f78C96767a814c36Aaa74d622ECf875d36` and the corresponding gauge type for the data(bytes) argument.

data(bytes) : `0x3a04f900000000000000000000000000304a75f78c96767a814c36aaa74d622ecf875d360000000000000000000000000000000000000000000000000000000000000003`

**Disclosure:**

> This proposal is the sole work of @Llama contributor, @Matthew_Graham, via the legal entity TokenLogic. Llama is a Service Provider to Aave DAO.

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<div class="post-metadata">

**Author:** ![solarcurve](https://yyz1.discourse-cdn.com/flex027/user_avatar/forum.balancer.fi/solarcurve/32/1487_2.png) [@solarcurve](https://forum.balancer.fi/u/solarcurve)\
**Post date:** [April 12, 2023, 11:59pm UTC](https://forum.balancer.fi/t/bip-247-enable-wsteth-bb-a-weth-gauge-polygon/4606/2 "2023-04-12T23:59:20Z")

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[https://snapshot.org/#/balancer.eth/proposal/0x0e19cbf938d7e694d2c2f9f30fa846ae9abe345358b21e3b169b2b5e770ebab8](https://snapshot.org/#/balancer.eth/proposal/0x0e19cbf938d7e694d2c2f9f30fa846ae9abe345358b21e3b169b2b5e770ebab8)
