Anyone still using a Teres table?

I have a Teres from the beginning diy era. It has a thick acrylic platter with the great clamp and I run a well tempered 12" arm. 
When mine is running the motor speed fluctuates very easily, it almost feels like if I breath on the platter it will drop. 
Upon research I ran across some mentions that there was a simple mod to the motor/controller to rectify this but I couldn't find any more detail. Can anyone enlighten me further?
i love the table and feel it has a ton of potential if I could get this sorted. 

Anybody have any contact info for someone who could help??

Ok I will try that, thanks.