Sprag survival in Norvil dry belt primary

Hi,
How, or can, the sprag be sufficiently lubed to survive in a Norvil dry belt primary, or was the previous owner mad thinking the two can co-exist?
I have been told everything from painting on transmission fluid to the gear train and carefully and routinely spraying CRC moto non fling chain lube on the 18 roller sprag but avoiding the oil-sensitive Norvil dry belt.
Any advice appreciated as to what, if anything works, or am I resigned to using the kick start only?
Am running a mk4 boyer bransden ignition, 4 brush mk3 starter conversion and high crank motomart battery.
Advice much appreciated.
Michael
NZ

My cNw dry belt primary has a sprag that has had no care in six and a half years and 18000 miles. No issues yet.
I am about to inspect and service the sprag with one of the recommended lubricants.
I assume you've seen the relatively recent thread about sprag failures? ( search "CNW e start conversion, sprag failures" - now, sensibly locked)
Cheers

It appears Matt had not taken offence over the discussion about sprag failures in cNw starter kits, just he was too busy to reply

Anyway, I asked about lubrication of the sprag in his setup and he told me his new supplier of sprags recommends a light smearing of this at a fraction of the price. A winter job for me for sure.