depends on how you use it
No. The invert mini is a faster, lighter, more durable and all around better built marker. There are no spyders that match the consistency of a fully electro pneumatic spool valve marker. The electronics and ergonomics of the mini are very good for the use of its double trigger, not just for looks. The mini also uses no macro line and has a regulator, which helps consistency and accuracy greatly.
No, An Invert Mini is a high pressure system, therefore it's internals and ASA must use a high pressure tank (nitro tank).
Yes it runs on batteries. It uses 9 volt batteries. You can use either disposable or rechargeable.
Yes. as long as they are .43 caliber.
standard .68 caliber
No. most guns are .68 caliber, however there are some .50 and .43 caliber markers and pistols.
No but not using one can make you're gun jam and not shoot as fast
There are no 45 caliber paintballs. If there were, you still could not use them in a 50 caliber, due to the barrel being larger and that you would have 1 and 1/4 paintballs in the chamber at a time, which would chop every time.
any .68 caliber will work, really though go to a paintball shop, anything from a store that is not paintball specific will be pretty bad paint that has been sitting there for months
Firstly the mini does not have auto, and to change the shooting settings you need to read the manual and use the trigger and button on the board to change settings.
the standard size is 68, there are a few off sizes like 43, 40 and 50 but the vast majority of paintball markers use 68 caliber and therefore it is the cheapest