Thundercry blade + Heavenquaker spear for SOLO PVE content

Hi, been playing the tank combo from the very start on legend difficult since release. I’ve noticed that majority of my poke attacks come from the spear whenever I fight campaign and world bosses. The only time i switch to the mo blade is when the boss gets staggered attacking with the max charge r skill, right after the f animation i immediately switch to the spear and continue poking and parrying, rinse and repeat.

I was thinking of switching out the tank spear with the heavenquaker spear for higher poke damage. Haven’t tried the combo yet, wanted to hear from you guys if this is a viable option primarily for solo pve content. Thanks!