Welcome back.
Looking forward to farming together again.

The sole purpose of doing split farming is for the bounty bag.

Blizz should increase the drop rate for those unique crafting materials.

Wiz can do very well with normal gears (even with yellow-rare gears).

However, Cru really excel with specific legendary gears (i.e. 3-beam flail).

If both Wiz and Cru equip with top-end legendary gears, Wiz can't deliver the same kind of burst damage like Cru.
Wiz can deliver damage like 40-50 millions per hit in archon mode but it has 120 sec cooldown.
Cru can deliver the same damage with 0 cool down.

Well, Blizz has virtually gone retarded.

No idea. Wish you luck.