All potential bonuses

I'm 100% sure you can get hb on android pants. I'm not sure how the ceiling cap works since I haven't cubed any maple weapons or mage equips that don't have their level requirements ending in 0s. A true test will be to see if you can get door on say a goblin cap, but my guess is that it's strictly level 70 or above. It's probably easier to cube a wooden wand and see if it gets status inflictions at rare rank, thus confirming the reqLevel's functionality.

It's probably strictly Level 70 or above. reqLevel is 70 for HB, and the level for the options (61~70) is listed as level 7. If it were 61~70, I'd guess the reqLevel would be listed as 7 rather than 70.