I still carry a firebird but rarely throw it due to the shock recently. I love the way the shock can reach back deep around a dogleg, where a firebird would tend to glide less. I find myself birdying many holes on FH hyzers more consistently. On the other hand the shock is also great for very consistent slightly turned over FH straight shots(200-300) particularly when downhill is on the left . In practice rounds for this situation I would throw my zone FH or turn over a putter or tangent but in competition the slight turned over straight Shock shot with the FH is such a no brainer I can't not use it.
This has really been one of the three big factors that is improving my game recently
1. using my lower body better while putting
2 Having dialed in BH and FH Form to a point where it is very relaxed, comfortable, and repeatable. I am throwing Hyzers, Straight, and An-hyzers very consistently BH and FH by learning to use power while staying very relaxed and ballenced. Relaxed, ballenced, committed and smooth is a feeling and when it starts to become a habbit it is a great thing. This allows for....
3 Really dialing in what the highest percentage shot is and playing these percentages very deliberately. By having the choice of BH and FH, overstable or understable, all in the toolbox and not favoring anything I can see more clearly what my actual percentages are. This is why I bring this up and why I've been throwing the shock a ton in competition recently.