Thanks so much for the help gonna b quite a while finishing my Yamaha (need crank and piston kit money but I am building everything else I can lockup clutch ignition setup extended swingarm wiring cases etc. when I get time I'm gonna give the two settings timing a go on my 4 popper it already has a system that I can easily convert. John my old h2s already seem to run pretty good but pretty weak below the Powerband Is something like the zeel. Really worth the money A really notable improvement?