This is my question of the top of my head.
With Boulderfist being nerfed (crit component being removed) and Rockbiter MS generation increased by 33% (from 15 to 20) isnt Hot Hand actually preferred choice in that row taking in concern
current t19 4p bonus (Lava Lash has a 20% chance to trigger Stormbringer)?
I see far better synergy with Hot Hand than with Boulderfist tbh. FreeLava Lashes mean more Lava Lashes, more Lava Lashes mean more Stormbringer, more Stormbringer means more T19P2 (Stormbringer also increases the critical strike chance of Stormstrike by 40%) empowered Stormstrikes.
On other hand this could spiral spec to be less consistent and far more spammy and proc orientated. Might as well end up as MoP retri paladins, when your whole action bar simply lit up since everything procced at exact same point