[Grounding in a 3D ABS Box]

I'm curious about this as well, is this the main ground from the board to the 510?

[Sweet Spots Ti wire troubles]

I thought the sweet spot (no pun intended) was between .07 and .2 for Ti temp control.  I'm using the SS .5 as well with the newest curve from Ari @ 450F and getting great vapor production.  I did however turn down the punch from the recommended 7 to 5 for preheat.

I also use the older curve at 380 with great production as well, this is the curve that ends in .7, .765, 1.

This is in a subtank mini.  5 wrap on a 2mm bit.

e: the wattages are 23 and 19 respectively, coil reads at .17ohm, non-spaced.