A comparison of 5 low whistles, based on the length of time I could comfortably hold an A

I mad this video as a follow-up to an online discussion with John Nejedlo about the characteristic of the windway in different low whistles. I ranked a Burke Pro Viper, a Brian MacNeil, a Goldie medium blower, a Qwistle with the latest iteration of the printed head and an MK Chameleon 4-leg. I play a jig on each in the keys of G and D to illustrate their tuning and bell notes.