You forgot the most important thing → super high ping from EU to PTR server (darkpatator is EU player). On live he will have 30-50ms (instead of 250ms+ on PTR).
Bazooka clear 148, if nerf stay as on Blizcon, than will be 7GR (this would be good nerf)
Necro will have big nerf and maybe not able do GR140.
Chant. Vyr Wiz. 145 on life (10k+ paragono), nerf will be 3,5GR (whole 3,5GR, best clears with Chant. is without Squirt and fixing Squirt will not help; fixing Squirt will help for speed lower tiers, but not for max push).
WW rend potencial before nerf around GR144-GR145, 7GR nerf.
Than we have after nerfs:
- bazooka GR141
- Chant. Vyr GR141-GR142
- Necro maybe less than GR140
- WD GR142
- DH GR140
- WW rend GR137-GR138
- Crus? (GR138 now, with new set?)
Obviously 0% on lamentation is overnerf. Need only the same nerf as Chant. → -3,5GR (or +3,5GR after nerf). That is lamentation to 71%.
Lamentation 200% → 100% is 3x to 2x modifier → that is -2,5GR.
-2,5GR will be still ok and Barb could be closely on top with around GR141,5-GR142,5 clear
And with lamentation on 400%. That is 5x modifier. That is +3,2GR over first PTR iteration (200%) and it will lead to GR147-GR148 clear.