Do most of you completely take apart your tformers before painting them or do you keep them intact? any halp would be much appreciated
It all depends on the part(s) in question. As Boggs6ft7 said, you can get good results either way. Whenever I use a brush to paint a custom, I tend to take it apart for the detail work (shoulder/knee areas that are harder to get to when together). As for the larger sections (hoods, doors, forearms, etc.), you can leave it together and still achieve a nice paintjob on it. So if you don't feel comfortable taking your stuff apart or fear losing parts or screws, then use a small brush and carefully hit the areas that are toughest, then touch up the larger areas. If you do it well enough, most people won't even know whether you took it apart or not. Also, use thin layers of paint when painting with a brush. If you use too much, you'll see brush strokes and the paint will look thick and gloopy. Using thin layers provides a smoother texture and you're a lot less likely to end up with brush strokes. Good luck with your customs work, man!
it depends on the figure some have tighter areas than others. generally i just take off what comes off naturally. like at ball joints and such. a good example is if i ever get around to my alternators i will have to take them almost all the way down in order to change the body color completely.
I disassemble most anything I customize. It's a lot easier to get into those not-so-accessible areas that really need some TLC when customizing. Plus, it does more to ensure that your paint goes over the whole figure evenly (especially when doing sprays)