Daystatesman & Cooltrax,
It will depend on what type of shooting you want to do and how many shots you need to achieve your intention.
If you shoot any target discipline where you shoot a lot of pellets in a short space of time then the divers bottle is the way to go.
If, like me you mainly hunt then a pump is not so bad as you shoot a few pellets a couple of times aweek and can recharge in between shoots.
Cooltrax - please don't view PCP owners as being "elite" nor "Elitist" we are just the same as you, using the kit that is available in a unlicenced form, to achieve an aim.

You just need to plan ahead so you buy the right gear for the type of shooting that you expect to be doing.

ATB

Ogri the trog