Lol I'm sorry guys but this completely braindead inefficient! Just put "the Project" on top of your mod and you'll get full convection vapor under 3 seconds from cold and using less Watts.
Why use so much energy to heat the Vapcap for so long and ultimately get only conduction heating? You already have a mod, just get a suitable atty (Project or BULLI/custom for convection, Divine Tribe DC2 for conduction) Instead you heat a coil, which heats air, which in turn heats the cap, which heats the material... there's loss at every step.
The only argument I could imagine would be stealth, but I'm not even sure it's stealthier to hold a mod in one hand, a VC in the other and juggle... vs directly hitting your mod with an atty like if it was an e-cig.