The more I think about it, Limited Optics and keep it major scoring. This would preserve CO as is, however, it would most likely hurt Limited. There should be a place for major iron sighted guns. Maybe just eliminate DA/SA from CO, however, that might eliminate a bunch of guns, but the manufacturers all seem to have SA guns. Probably the easiest way to go. Is SA really that big of advantage over the newer lighter trigger pulls of the striker fired guns? Really a hard decision to make. Might just leave everything alone for a while. One thing I would definitely do is change Production magazine capacity to that of CO.