I ALWAYS USE TRYALL RIMS......i was running the cnc reds on a try all rim for months and months .....the cnc reds work best on a medium sharp grind with the tryall rims.....i use a 2mm metal cutting disc....@ 90....with a little force behind the grinder
light grinds are a naeeee for reds im affraid.....it will offer plenty of bite but hold wise is just OK
The grind you have appears to be fine though
give the pads 2 hours of riding
Dave x