I experimented a lot in the beginning of my PCP adventure, I bought a few AEA semi autos and I had a 50 cal bullpup, I had a few Hatsans. The AEA bullpup was fantastic but the semi-autos left a lot to be desired. I ended up selling all of them, now I have a Huben K1 .25 cal, a Huben GK1 .25, in my opinion the very best PCP pistol you can get by a long ways. And the jewel of my collection is the western rattler .35, Love how powerful that gun is in semi-auto. And I kept my .25 Hatsan Sortie for my kids to shoot. I spent a lot of money when I got into this hobby but I am really happy with the four guns I now have. I don't regret the money I spent at the beginning though because it was a learning experience, I had a lot of fun with all the guns I bought getting to the point I am now.