plusCubed
Regular
This is probably why from my experience, higher viscosity is less gummy, because it's is that thick that when you turn a face, the particles of lube on one side don't have time to attract the ones of the other side, but if the lube is too liquid I feel it becomes gummy since attaction happens much faster ( or say u'd need to turn much faster not to feel it ). Also, you need to be extra careful with higher viscosity since a drop too much can be dramatic.
I find this is the case for me too. My WeiLong and ZhanChi both seem to be much faster and less gummy with 50k (completely cleaned & relubed) rather than 30k. Anybody else with the same experience?