here is a chart for dummies like me:
Split shot size
Tin Weight Lead Weight
#4 1/10 (.1) oz 1/8 (.125) oz
#5 1/13 (.077) oz 3/32 (.093) oz
#7 1/22 (.045) oz 1/16 (.062) oz
#3/0 1/40 (.025) oz 1/32 (.031) oz
Only a weighted leader or fly counts towards the total of 1/8
Don't think it's all that difficult to stay within the regs of the fly zones..
I fished the UFZ once a 3,000 flow using 3- #3 and caught fish... Where do you think they will be hanging ?