Mixed up some Perfection XR-1 yesterday and shot a sheet at EI 10. Dilution 1+5. Normal contrast scene. Developed for 16 minutes, agitation once every minute. Tray development. Temperature 30C. Shadows were good. High value was a bit over the top. I'll shoot two more sheets. One will receive 1+5 dilution, agitation once every 3 minutes. The other sheet will get 1+7 dilution, agitation once every minute. I'll report back.