I can chime in on this,,We got the Chinese ones so we could compete with Chinese. Trying to sell my Canadian made stuff against Chinese was like apples and oranges.
They both have their pro's and cons'.
Chinese,cheaper but do not last as long
Canadian made, More money, last longer are repairable,heat better and are more insulated for a better heat soak.
The Chinese was interesting as I have seen many night mares out of China. But of the 30 sets we sold last year we had one with an issue.
IT was right out of the box so we swapped it out.
They do need a bit more power so a 1000 generator won't cut it.
racerpro171 used them this year and did them proud running against Jodi at Shannonville.
I won't say they are awsome, but they have been a very very good Chinese warmer to date. I have a friend in China that sourced these for me and
the company came highly recommended.
But what we did learn this year is that all tires , Dunlops especially like more heat. So getting a good heat soak with any tire is paramount today. So as racepro171 suggested,,cozys are necessary to keep the heat in. Keep in mind the rubber is better and what was the norm isn't anymore. If you are racing something to consider. Trackdays,,not so much.
If you want to ask me any questions feel free to e-mail me.
John