In 2021, I've steadily ordered TR3 and TR4 parts all spring summer, and have gotten my orders very quickly and with almost no backorders at all. Albert seems to be doing very well at running the firm. TRF has been my "go-to" part supplier for many years - over 40. BPNW is my other go-to supplier. I occasionally use other suppliers as the occasion warrants, but usually look at TRF first.