Got my Vapcap just today, can only compare later and report But after over half a year with tubo I can say that I rarely use the bent stem only as the air is just too hot for me then. The power and unrestricted air path just lead to a lot of very hot air I mainly use a Vapor Cooler from ddave which removes this problem completely except when multiple people hit straight after each other and it slowly heats up. I then have to wait 1-3 minutes. But I would expect you to get not much irritation with something like it, the milaana cooling mouthpiece should do the same for example. The whip is also an alternative but in my experience a little bit less cooling. Still acceptable temperatures for me. I don't know if those options are not discrete enough for you, just to have that in mind. Funkyjunky is a great producer and shows awesome support for our devices! Really useful software updates did come regularly.