The 510T atomizer is a very different internal construction from the standard 510 atomizer. It wouldn't really surprise me if the design allows more heat transfer from the coil to the body of the atomizer during use. Been a long time since I've used one, but I do recall it got quite warm at times. If your
juice is very thick and not wicking well (hence a drier coil) then it might allow the coil to burn hotter, but I don't think your choice of juice flavor will affect atty temperature in any noticeable way