inners because most people like outers because it looks cool but doesn't help your deck but inner ones help your deck because if you deck is going to brack it needs to break the inners to to fully break get what i mean
Inner and strip reio's (or box if ur botherd), as long as the both fit snug then it'll be alright
Inners like this: http://www.youtube.com/watch?v=-fZ8XQZtnAk[link=hyperlink url][/link]