I have played G1's live (and Ambassadors) and while they sound good the durability for me is just not there. I might get two gigs out of them. I recently used a G1 coated on my snare for a 2 hour set and afterward it was fairly beat up.
Not getting into the weeds just give you my .02. I have also noticed a noted increase in tone and clarity with the level 360 heads vs. the older Evans heads.
What I used to do is buy a couple of different heads for my 12" tom and see what I liked the best.