I've never had any problems developing any films in Pcat-HD using conventional methods. I stopped using rotary when finances dictated I sell my Jobo. Pcat is relativly inexpensive and mixing 550ml for a single 120 film is cheap. MDC recommends Pcat-HD 1+1+100 for 16mins @ 20c for Tmax 100. Check this site out for more info
http://www.pyrocat-hd.com/