its kinda why this place is here to ask questions and learn stuff isnt it?
the first thing would do is buy a palmer stabilzer for it, this will let you ajust how much pressure is going to your marker, it also blocks liquid co2 from entering the gun, this upgrade alone will make your gun more consistant, these stabilzers will cost you around 80-100 bucks they are not cheap but you need to buy a secondary reg for the lp kit anyways and it works with both co2 and compressed air.
THIS IS THE ONLY STABILIZER that i know of that can make the lp kit run on co2, now your grand total is up to 200 bucks or so and thats about as much as one HPA bottle and reg on ebay, this will also help your shot to shot velosity, as well as keeping your gun clean on the inside making it last a little longer for you
six of one half dosen of the other.. thats what im doing for my A-5, the palmer, the lp kit, then my hpa bottle