Don't be too envious, lol, it has taken me a while to get to this point. This is the first full frame I have attempted. Had alot of back tracking, but going ok now. Got a day off today so hope to make a few moves forward. No knobbies, slicks!Wow! You've been busy since last time I checked...I am envious of your frame building skill and capability. The rear swing arm reminds me of early MTB full sus designs, Fisher, etc...can't remember, putting knobbies on this?
There is multiple leaves for the spring. I am just using the bottom one for mocking it. They came off a snowmobile front ski. I have both ski's and haven't used the second one yet so if I need I can add a leaf or twoI like it, but it's hard to judge without seeing the whole bike in the pic.
Don't know how strong/weak your spring is, but you probably want it stiff enough so that it maintains it's curve except when needed for suspension.