Second year for me as well..but i talked to ALOT of people and heres what i found...
Rage expandables have potential...the problem with them is premature opening. Ex. The blades are prone to expanding before impact, this basically gives the arrows "wings" and steers it completley off target. Most guys solve this with a very lightweight rubberband. On the plus side you have 2" of cutting diameter... Last year some guy told me he had a deer lined up quartering towards him and upon release of his arrow the deer jumped and he nailed the deer in front of the hind leg, it was such a massive wound it didn't even go 100yds before it blead to death...
As for the G5, i can't comment on.
My personal reccomendation would be slicktrick broad heads, 1" cutting diameter, but the msot important thing... They are one of the most accurate broadheads on the market, which to me is more important than the cutting...
One last tip (you may already use this), when sighting in your bow w/ feild tips, make sure to buy the tips that weigh the same amount as your broadhead, it will save you many headaches...Good luck, hope this helps.
~A bad day of fishing is better than a good day of work.