What sort of objects are you planning to shoot Murphy? Have you played around with software like CCDCalc to get an idea what your new FOV is likely to be with a larger scope?
Pro: More light, faster subs, better resolution (hopefully)
Cons: Tighter FOV, tougher alignment if go to shorter Focal L, increased weight and focal length make tracking a LOT less fun.
Buying or building a light high
quality short focal length astrograph is a serious undertaking that warrants plenty of up front research....
