It's tough to say what was causing the malfunctions. I'm positive that CZC would make it right and then some with regard to any malfunction, especially with their own model.
The light strikes could be a too light main spring. The reviewer did indicate that the SA trigger pull was lighter than the TS2 which to me indicates it is running a pretty light main spring. That along with a skeleton hammer could be aggravating the problem. I agree that paying that much for a gun should warrant 100% reliability. CZ's are normally so reliable, there must be something off with this gun?
In my experience, the heavier the bullet the softer/slower the recoil impulse feels. So if you already have a "slower" gun, then you may be best suited to run a "faster" feeling ammo (lighter). I have a hard time telling any competitive advantage between my competition loads in my TS0 in 40 between 165 and 185gr projectiles. There is definitely a difference in felt recoil but I haven't found any difference in speed/accuracy.
Cheers,
Toby