I completely understand that using a Glide on a wand makes it a lot easier to push/pull, no question.
Basically there are three variations as well; The hole design, the slot design, and of course, the combination design.
IMHO, when choosing a Glide,I would suggest the slotted design. Why? Because it would have the greater extraction performance, as well as the fastest recovery.
The JAGUAR MX-2 ETM @ crossamericancorp.com