Yikes! Um....
I'm using the coil it came with it's a EC 0.3 ohm head I think or it's a 0.5 I'm not sure which was pre-installed.
I don't know about resistance but yes the TC40 has temp control and I believe the pico does too.
I guess for modes you mean VW/bypass/TC-n/TC-TI/TC-SS/TCR (copied off the box)
I don't believe they're set the same no.
Thanks for your help...I feel pretty clueless.
I have to admit though, after smoking for 43 years this is a godsend and I'll take the time to learn it to stay off the evil cigs!