dont know how big a company is - but we use this stuff called evolve - its a very small size though - only trouble is it has a very thick fill and is a bugger to get out of fluffies if you get a freak break in your barrel or chop and clothes.
Spank is rubbish mate, We used to use it, turns into like wax or tough powder like play-doh, Gets in gear and doesnt get out
Were using ink,draxxus and nightmare for training at the minute, They seem to be doing alright
Ive also heard good things about Fuego at £15 a box
When you buy paint unless you have sponses or people who will do you a deal it is quite hard to pick up some half way decent paint if you wannt to get anythng yu could get blaze, frostbite or anything recomended by any paintball shop hope this helps Little Dan