Metering Plates, six pack

I currently have the stock 340 metering plates in, they are #41. First wot check seemed to be good on the drivers side, rich on the pass side. Was going to just leave it that way for now. Looked at the plugs last nite, it seems to be rich all the way around again. Should be lean, it's fall here and cool out. After a summer of playing with them, I think I may know why people have had such a headache with them. I have had the promax plates in also, with main Holley jets, just never seem to get it right. Going to have to buy one or two sets of those hole sizing sets.
Next year, this year is a wrap.