I played about with memes on launch at Ape.Pro on Jupiter, I thought I was doing OK, as I saw a few that were obviously being manipulated as the price was going up like a stairs for about the first hour after launch. I used the "buy 0.1 SOL" button and caught a few 10% rises, and was pretty pleased with myself until I realised that my "0,1 SOL" buy was actually costing 0.12SOL , which was VERY annoying.

Then the inevitable happened and I got rugged, so the experiment was a bust. It would be possible to grab 20%+ rises with the same memes I played with , but staying in long enough to catch 20%+ would just increase the likelihood of catching the rug.