smoothyfp,
From the sound of this post and I few of the others I'd say you're getting information overload!!!!!

My suggestion is to stop asking questions here and start asking them at the club you plan on joining!!!! This place has a lot of info the tricky part is figuring out which advice to take and which to ignore
BTW I've used 10x6 on the Older OS .46 SF with no problems. you could also try an 11x5 my personal favorite.