# FAQ **What is the difference between Lambo V2 and other Pump.Fun forks?** > Simple. Lambo V2 is not a Pump.Fun fork**.** Lambo V2 does not obtain initial token liquidity through token sales & fundraising. Instead, it acquires initial liquidity through cost-free vETH. **What are the benefits for Devs who** intend **to launch tokens on Lambo.Win V2?** > **Devs** can launch tokens with one-click without having to add real ETH into the liquidity pool, saving initial costs. Plus, our mechanism can save up to 50% on market-making costs. For more details, please refer to the whitepaper (link). **Which DEX will the Lambo.Win V2 token be deployed on after launch?** > It will be deployed directly on Uniswap V2, with future compatibility for Uniswap V3 & Uniswap V4. **How can devs get free initial liquidity through vETH？** > vETH can be minted through our protocol since the liquidity will be locked in the pool and never withdrawn. **What are the core advantages of virtual liquidity?** > * Virtual liquidity saves initial LP liquidity costs; > * It saves 50% on market-making costs; > * It provides users and devs with 2x LP leverage; **How can users trade memes using vETH?** > Users do not need to swap ETH for vETH to participate in meme trading. They can do so through: > > * The Lambo website frontend; > * Aggregators (currently only supporting OKX wallet); > * Various Trading Bots/Systems (TBD); > * Uniswap (TBD); For details, please refer to the Roadmap section. **Why did we create an ETH-vETH pool on Curve?** > 1. We needed to establish an ETH-vETH pool on Curve to facilitate quick access and pricing for aggregators and other bots. > 2. Curve's StableNG Pool is well-suited for asset anchoring, allowing it to maintain a 1:1 peg even during large-scale deviations. This helps reduce our rebalancing frequency. > 3. Overall, our team has established there is no better DEX than Curve for our protocol. **How to maintain the ETH-vETH peg?** > The cash-in and cash-out for ETH<->vETH is pegged 1:1 for Lambo whitelisted users. For this reason, Lambo has developed a self-rebalancing arbitrage contract. > > 1. If ETH in the Curve pool > vETH, indicating vETH is at a premium, the rebalance contract can use a flash loan to borrow ETH, mint vETH, sell vETH in the pool, and ultimately obtain more ETH, repaying the flash loan, thus achieving a 1:1 ratio in the curve pool (ETH <-> vETH). > 2. If ETH in the Curve pool < vETH, indicating vETH is at a discount, the rebalance contract can use a flash loan to borrow ETH, buy vETH in the pool, and ultimately obtain more vETH, redeeming it back to ETH and repay the flash loan, thus achieving a 1:1 ratio in the curve pool (ETH <-> vETH). **How can Devs and users add virtual liquidity?** > There are two ways to do so: > > * Adding an equivalent amount of Meme-vETH LP through Uniswap V2; > * Taking a vETH loan through the Virtual Liquidity Function to add liquidity; **What is the difference between these two methods** of adding **virtual liquidity?** > * The first method is a standard liquidity addition on Uniswap V2. Its advantages and disadvantages will not be analyzed here. > * The second method only requires adding single-side memes to make the liquidity pool which saves 50% LP costs. The advantage of this mechanism is trivial since it is a 2x LP leverage. But if the memecoin's price goes down, the LP will be locked. In this case, users will incur losses. **How to withdraw virtual liquidity LP?** > * The first method entails withdrawing LP through Uniswap V2; > * The second method currently does not support withdrawal. The LP will be burned. Future versions, however, will have a withdrawal option. **Is it possible to use vETH or Meme to add one-sided virtual liquidity?** > No, currently Lambo only supports Uniswap V2. **Might a large number of users borrowing vETH to add virtual liquidity cause any issues?** > No, users need to purchase an equivalent amount of meme assets to form virtual liquidity LP. A detailed mathematical explanation of this mechanism can be found in the whitepaper. **How can users earn profits through vETH?** > By providing ETH-vETH trading pairs on Curve, users can earn: > > * Swap fees; > * Get $CRV emissions; --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://lambo-win.gitbook.io/lambo.win/getting-started/faq.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.