Just be careful not to apply too much colour in 1 go or you will get runs as gravity will pull the wet paint if theres too much.usualy a plastic kit like a gundam can take a primer then 3 coats of thinned down paint, I tend to use tamiya thinners for my hand brushing with either tamiya or citadel paint.also I tend to use flat colours, especialy if you need to or know you will be touching up.
If you use gloss coat it has a glaze.if you touch up again ontop of it you will end up noticing the touch up as you will see where the new paint us, so flat paint is best, then do your touching up, then hit it with your gloss clear, 2 coats should be good.then you get the even looking paint even after touch up and the clear shiney finish of gloss.
In reply to - tobeseenfull posted an update in the group Intermediate Modeler – Modeling Competition 2013 i was testing some colors, i'm having trouble getting the red to look red. i used a grey primer and now a mr.color red. do u need to use less thinner or use white as a base ffirst. its looking kinda wierd. and im trying to paint it char color but i cant seem to br able to mis he dark red from the red comet zaku? any help would be great. thanks