^ I wear my chukkas in the same size as my Barrie shoes, which is 1/2 size down from TTS. What makes your feet swim in the shoes, IMO, is not the last size/shape, but rather the fact that there is a shitload of upper shell material and only two eyelets on each side to cinch it all together. Very little stability.
I have a two-eyelet chukka in #8 and a black shell six-eyelet chukka, both in 7.5D (which is the same size as most of my other Barrie lasted shoes) and they both fit the same around the bed of the foot and in the toe and heel. The six-eyelet chukka is significantly more stable around the ankle though. After experiencing both, I don't think I could comfortably drop down a half size in the two-eyelet chukka.
Thanks to all for the chukka sizing help. I guess after over a year on this thread, I am still the noob asking how to size the Barrie last 😊
So I kopped the Harrison cxl chukka late last night after tucking my sick child back in for the 40th time. Thanks to the gentleman who reminded me about them with his post yesterday; I forgot they were on my list for the spring.