Tele Vue Tube Rings

I plan to attach a Tele Vue 102 scope to a Losmandy G11 mount and wanted to know what hardware works best and is one tube ring enough to hold the scope steady? Thanks for your help in advance.

The stock TV tube ring will bolt to a Losmandy DUP with short 1/4-20 cap screws. You have to keep them short because of the short thread travel into the tube ring. If you want a more solid, anti-tube flexure solution, then two Parallax rings would be better.