I checked the web address I gave you for deepgroove and it must have been closed. Music Direct still has the info and if you click on to their site they also show the installation instructions. One thing I forgot to tell you is if you tried the deepgroove subplatter mod you will be limited to the types of record mats you can use. The center hub sticks above the platter on the thinner Planar 2 glass platter. I use the Ringmat cork and paper and that works fine for me but the felt and carbon fiber mats would be a problem. Also the extreme phono doughnut mat would work but it apparently leaves residue on records.