Trying to max Axel Gear?

[Justice]

Trying to max out an Axel Gear since I love playing with the teleportation effect.
So far I have it level 500, 100 Rarity, 400 Kill Bonus, lost track of Training bonus a long time ago.
HP: 63780
SP: 4220
Everything else: 3200

I know I'm gonna need over 1000 TB to get it maxed out after reading, but getting training bonus only seems to raise the stats by like 20 at a time. At this rate it seems like even after 1000 more it won't be nearly 2m stats so I'm a bit confused.

Also big sad to spend this much time and have basically nothing to show for it so far lol. I guess I expected it to start picking up pace in the stat increases eventually.

[Phoenix-Mask]

Did you try the assembly?

[Binary]

Are you using a maxed innocent of each stat (except for HP)? That considerably speeds up the process
The increase per TB is percentage based, so you get more the more you have, it does start very slow. Also don't waste points with the assembly, not really worth it