skipper_52,
I wouldn't worry too much about the dampers. They were an attempt to eliminate the resonances of the 425oz/in steppers. I made a brief foray into making and trying some for my Solsylva machine build. Inconclusive results obtained. Other things got in the way and I quit messing with the dampers.
It seems to me that if they work at all, they would only work within a fairly narrow range of speeds or would need retuning for specific speeds. I also have my doubts as to whether they would stay tuned at a specific speed very long. The springs I used are very likely not ideal either.
David Steele might be able to elaborate more about his final results if asked via email. Construction details and some info are on his website.
Check the Mach3 forum on CNC Zone for the Mach3 initial setup for your equipment. I use EMC2 (which runs on Ubuntu Linux) and has a Xylotex generic setup as a starting point.
CarveOne
CarveOne
http://www.carveonecncwoodcraft.com