TechnoGeek

Ok, I gotta ask... I can see the point on a mech mod... You're not discharging the battery the additional time for the ramp up, which could be an additional 1-3 seconds depending on your coils(So if you have some huge 20 gauge, reverse immelman, octo-core parallel, alien velociraptor dual coils). As I said, I can see the point with a mech mod, you're preheating the coil without a a longer more continous draw from the batter/ies. That makes sense to me. If your using a regulated mod, I don't see the advantage to just pushing the button, and waiting, since you're waiting anyway when you're tickling the fire button.... I do agree though, preheat would be a great option to have for in power mode for coils that have more mass, and take awhile to heat up....

I had the EXACT same issue with a HotCig DX200 I purchased used. It worked fine for about 2-3 weeks, and then TC was not stable, eventually started displaying bizarre temperatures like you're seeing, and bounce out of TC. Turns out the person I bought it from had an issue when HE first bought it new from Gearbest.com. So, he returned it to them, and they fixed it..... It was the WORST repair job I have ever seen! They used BARE wire, without insulation, it was two thinner pieces of wire soldered together to make one thicker piece, and the frayed end that was attached to the 510 connector was BARELY attached by SOME of the frayed ends. When I used a small screwdriver to move some of the frayed wire out of the way to get a better view of the connection to the 510, the wire just came completely off! I'm shocked/surprised it ever worked! Since the 510 on the HotCig DX200 was a press fit, I had to make a small tool to I made pull the 510 out, and replace it. I used a Varitube to replace it, and some 14 gauge silicone wire. The hardest part was getting the nut inside the case tight, and lined up so the back cover of the module containing the DNA200 board could be put back on without interfering with the cover being installed. The person I bought it from was great, offered to pay to have it repaired, or pay me for the cost of the parts to repair it after he saw the pictures of the Gearbest.com repair job...... I learned a valuable lesson, NEVER buy anything from Gearbest.com that you may have to send back to them which they may choose to repair!