So I've gone back to running WCG gpu wus only. As I said above, the wus are 2 to 3 times longer than they were last year. They take anywhere from 17 minutes running 2 at a time on a 1650 Super to 30 minutes running one at a time on a 1030. Newer gpus will do much better and can run 5 or 6 at a time. The wus still require a full core per wu so you may want to keep that in mind.

Download and upload problems seem to be cured at this point. I do run a tickler over 5 machines (9 gpus total) and have no problem keeping the caches full at 50 wus/gpu. I haven't tried it without the tickler, but they seem to have more work available so you may not need one.

WU's pay about 1350 to 1450 credits/wu.