Hello there, This is probably one of the biggest asked topics on the forums next to the 0.22 Vs 0.177 questions. It is all down to your choice, holding them testing if available. Then there is the regulated Vs nonregulated question it won't really improve your shot but increases the shot count which most pcp's will give 60 or more shot's so can boil down to what are your using the rifle for ie a day out after rabbits ect then 60 should be plenty, but if you are going to the range shooting targets you might need a few more shots. I decided to get an AA S510 in 0.177 for ratting and range use as i did not want the complication of a regulator and i have not run out of air doing either. I also have a Walther RM8 which is regulated and in 0.22 so more shots from it being 0.22 plus the reg gives me around 160 shots on what is called the sweet spot. But now i have found that i like shooting the springer's as much if not more i have a Walther LGU in 0.22 that is fantastic, and an AA TX200 in 0.177 that i find not as smooth, So all in all it's a hard decision to make as a beginner with all the hype put out by manufacturers, also you will i think overloaded with info from owners, Myself i would not go for Daystate just from tales you here. So i suppose i have confused you even more so i had better shut up and let you make up your mind, All the best Graham.