The problem is that in electricity you can not just add more and more resistances (basket in this case) with the same battery power.

You can try with 2 baskets as i guess the battery might provide enough power even if it's not done for that but with 3 the voltage drops (so the temperature) and vaporization is not effective.

If you still want to spend money for DMT vaporization science sake, you can also try to find a more powerful battery or test the power adapter done for this vapo but i can't tell you if it's gona work or not.

Good luck and tell us results if you experiment further.