Hey, Ron. Give me the actual length measure for balance if you would, please. Also, LOP and over all length of each. I'll run a simulation of weight reduction and see if I can give you a suggested amount and location. 5 oz, by the way, is just more than the 4 oz a shooter with average sensitivity to weight can detect. Could be you are less sensitive than average and may want to leave the guns as they are. Removing weight will, most likely, change balance point. You will need to check your sensitivity to balance against an estimate of balance change if your reduce the weight.
DDA