I guess from the information your glass heater design is great and it is all glass.I was incorrect from the pics I thought the holes at the end of the glass tube were in the tube that the heater was wrapped around! I guess a bakx is your heater without the pid control!
I could never get an external coil on a glass tube to heat the inside of the tube or the herb consistently enough for convection so I went a completely different route. From what ive seen the bakx basically is your heater & vape method on a e cig battery! So your vape, the bak x, a ball vape with external coil and mine are 100% glass vaporizers that isolate the air and vapor paths from everything.