Most ll or lll things are rarely as good as the original  !

The GB2 is one of those balls that rolls good on a variety of conditions and one of my favorites. The MVP is good, but more conditional for me. When it matches up its really good but it needs friction. Anytime the lanes are tough you can't go wrong with a GB2 or IQ Tour if you matchup surfaces correctly allowing you to control the breakpoint.

my original GB was pin over ring. with today's balls being stronger, plus my roll and my game  being a little different from 7 years ago, I feel like my pin down MVP with a little bit of surface gives me the same type of reaction i had from the original back in the day. More people have success with the regular GB2 though. You can't go wrong with either choice, but I wouldn't go with the gold if you're looking for benchmark reaction.

A fellow lefty...
I still have an original Gamebreaker and a V2 if anyone's counting.  Actually used the GB a few weeks ago practicing on D/S nationals pattern and it was the best look for me as well.  Haywire is second in terms of look.  On Team, my Haywire is #1.

Long story short, I ordered a GB2 MVP so we'll see how it rolls.  If you haven't purchased already, I'll likely be testing it this Wednesday on both patterns.  I'm really looking for a solution on D/S because Haywire and Hy-Wire are my go to for Team.

got back from Nats a week ago
I'm LH, 385ish rev, 16 or so mph

there were 2 of us on that side
1st of all, go see the Hammer booth, BOB or DAN, they will look at your equipment, talk with you and suggest some surfaces, for the left side
I took
legion solid, GB2, tour sic, Eruption pro hybrid, track heat
they put my legion at 1000 dull, the gb2 at 1000 dull, tour sic = same
in tema, the legion was very good, we used a 500 dull ball each in practice and into game 1 to try and help us with an area, switch to legion in frame 3 or 4
we played up 6-7, the other lefty used hos 500 grit brunswick all 3 games, I used my legion thew rest of the way
shot couple mid 190s and then 245 last game, it was a full squad (320 people)
my 635 was prob in top 10 on the squad, it's a hard pattern.
went back to booth the next day before minors, Bob told us it would seem longer than the extra 1' they put out, he was right.
I wish i had brought something stronger
We struggled in game 1 with the dull equipment playing outside, we switched balls, switched zones, nothing was any better
in game 5 (late, they started to open up a little, shot 221 game 6 with my 2" pin tour sic(still at 1000 dull) playing 12-10
I tried the Scandal at a demo days a few months ago, and it was way to much for me.
I bet I could have used it on the minors pattern, it felt that slick to me
a little extra speed and the ball went 60'
no matter what balls you take, there isn't any magic ball or surface that will do the trick, its flat out a tough pattern, you have to make good shots, have good release and good targeting.....make your spares
Good Luck

Go see Dan and Bob
FYI - the practice lanes and the BJ are not the same as the tourn shot
do not use them to gauge much of anything,
the BJ and practice lanes have more friction IMO