I would say no, mikaelh sad 5-chains are not all, what important is block
i am now testing seieva percentage 23, with CPU fermat, CPU ~95% and 2x GPU at 96%
5-chains are more or less always same ~500-600, got one or two 7-8 chains but it might be just luck
would be gr8 if someone post 7-8 chains find... atm i have ~25-30 6 chains and ~9 7-chains
quit it for tonight, most i managed are few 7chains and ~one 8chain per hour and that is not good