derek, i know you run a truck mount and with the power that you have there i think that the 'airflow' of a glide suits it better. without a glide your really 'sucking' at the carpet fibres, you will get lock-down which seems great but it doesn't actually lift the moisture out of the carpet as much as having a glide, if you have an inline filter try putting your hand over the vac tube and see the waste water going through it virtually stop, take your hand off and the water in the vac tube moves through the filter, that is what a glide does, it 'lifts' the water out of the carpet easier and is better for your back, it's the airflow, (not so good for your waist though),
colin
ps if the glide is for a hm 2-jet i will buy it off you if your determined not like it!!!