My main question is my temperatures. Definitely felt it really hot after the 8th hit on 395.
i don't have the imp but on a box mod for ecigs 400 degrees is a mildly warm vape. on the imp, it might feel hot (since the coils are not wet) but another consideration is that your mod is reading the resistance incorrectly. if the resistance is reading high then the temperature control function won't work properly (and it will feel too hot).
do you know how to get into the settings for your box mod? i think the imp uses 316L Stainless Steel coils (please correct me if i'm wrong) so you'll want that selected on your mod. some people play around with the TCR values of SS316L, though the default is 0.00092.
generally the way to keep your heat down would be to either leave more time between hits or shorten the time of depressing the button. though if temperature control mode is working properly when the coils reach the set temperature it should stop heating up immediately.
you could also play around with lowering or boosting the wattage. the more watts the faster the mod will get up to the set temperature but it will also cut off the power in the middle of a hit when it reaches that temperature which can result in a weaker vape. you want to hit that sweet spot between where the mod is heating up the coils in tune with your draw without overpowering it, while also not being slow to ramp up from being underpowered.
which mod are you using? the temperature control function has a reputation for working poorly on many cheaper mods, especially ones that are more than a couple years old. newer mods with more advanced chips offer better control of the temperature.
ultimately, stainless steel coils cool down pretty so i guess the problem is with the glass retaining heat. probably some kind of cover is the only solution in that case.
my strategy for a 510 style vape would be to judge based on how the ABV looks. if the ABV is nicely browned but it's uncomfortably hot, just keep adjusting the temperatures down by 5 degrees until the vapor feels cool enough while still extracting reasonably efficiently.