I made a big post on how liquidity pools work, how to transfer the coins and get it working. You only get airdrop points for the DEC but in a liquidity pool it counts twice so its like getting 1 for the DEC and 1 for the SPS. Here's the link:

https://www.splintertalk.io/@hiveabbyftp/liquidity-pools-for-getting-those-sps-to-count-for-sps-airdrops-for-pyrose91