Maximizing Temper Weapon with Whirling Assault

Temper Weapon (in the Smith ascendancy) grants your next 4 attacks Combust on Hit. Now, 4 attacks is very few attacks for a long animation, but what if we can squeeze multiple hits out of a single attack?

Whirling assault is a weak quarter staff attack which strikes multiple times in a single attack over ~1.5 seconds. If I understand Temper Weapon correctly (and it behaves as expected), then a single Whirling Assault should proc temper weapon's combust on each individual Hit, while only consuming a single empowered attack. Assuming this works as expected, we're triggering a huge number of (very powerful) combusts on a single attack.

Whirling assault also has great synergy with the support gems Unyielding and Unabating, which grant you 150% increased armor and 48% Life recoup during the attack, due to WA's long attack animation.

Biggest issue is Warrior starts on the complete opposite side of the tree from Quarterstaff nodes, but you can stay on the left side and just focus on Two Handed damage, Fire damage, and Life/Armor nodes.

Won't be able to test this for a while since unfortunately WA is a level 11 skill and I'm out all weekend, so if anyone is able to confirm whether these two skills interact as expected, I would appreciate it!