That's where I ended with myself after some testing!!
But now I have the idea that it starts pinging at total advance wich in my case is about cruisespeed .
I've set the the initial timing by ear and then it picks up the best in rev's,but total seems to be to much.
If I would change from the blue one(21 degr) to the 25 degr,then total is gonna way more??
With the stock two heavy silver springs pinging is no problem as total is reached beyond 4000 rpm,but then it picks up worse in lower rpm,wich isway better now with silver heavy/light combo.
What should be the best initial timing to start with?
I've included some pictures for those who love a BB