To obtain the correct VTA. The suggestions by Caterham1700 will get you the same results as Plato and I, and could provide the ability to adjust the VTA in tiny increments. I think this is a REAL advantage! I recently worked on a VPI TNT, and could not raise the tonearm adequately to get the proper adjustment. After speaking to Harry at VPI, I discovered that the height of the platter could be raised and lowered, extending the range of adjustment. I have no experience with your TT, but as suggested, a call to the distributor would be in order. As far as the dust cover, ask if a taller version is available. If not, a custom cover could be crafted. Look in the Yellow Pages under Plastics and find a dealer with a shop that will build to order. Plexiglas is an ideal material, and available in clear, and several smoked and solid colors. Having control over the proper adjustment of your arm and cartridge would be worth the effort.