Sone very good information of the shop towel method as researched by U of G in partner-ship with Bob Binnie. Though results differ from Mr Olivers studies, Mr Binnie is kind and fair with his answers. Once again reinforcing what sawdstmakr says, location matters in beekeeping.
This shop towel segment begins at 16:48
https://youtu.be/TzD56IKME54
Thanks for posting. Interesting to hear of such contrasting results...and I agree with Bob that they should post the results of their research, even if the results were disappointing. Much is learned from failure--perhaps more so than success IMO.