I am unaware of a criteria for running a glide..It is just a choice you are presented with. Bruno, Lenco, Jeffco, Liberty, Jericho, TH400, TH200, Glide whatever...Pick what you can afford and what will work best for your combo.

"I am not ashamed to confess I am ignorant of what I do not know."

"It's never wrong to do the right thing"