"Cliff_Allen"My advice, if you were asking for it would be to definitely get a regulated gun. I've been through a bunch of PCP's the last few years, including the AA S510, buying selling and flipping. I just bought and tried my last unregulated gun, a Daystate Wolverine. Even as efficient as they say the valve system in it is, the POI on the target at 50 yards had a noticeable rise and fall as the power curve went up and then down again. I'm a paper puncher also and enjoy trying to be as precise as I can.
If you were going to ask my opinion on a gun, after all the flipping, and trying different models, the two that have stayed with me are the FX Royale, and the BSA R-10. Aside from all the other subjective things that people will or will not like them for, the one most important factor for me is their accuracy / consistency. Those two guns will put up some seriously impressive consistency. If I could have only one, it would be the Royale.
I did a mini review of the BSA R-10 here
http://www.airgunnation.com/topic/50-shots-with-the-bsa-r-10-mkii-22-pics-mini-review/ And I also recently made a video of a 33 shot group at 50 yards with the FX Royale here.
http://www.airgunnation.com/topic/finally-got-it-on-video-fx-royale-500-33-shot-group/