correct me if I am wrong here but the wand is not made for agitation
it is made for extraction............
I would be willing to bet your wand and
glide are more then fine.......
as far as being to wet I am going to go out on a limb and guess that while you are scrubbing the hell (agitation ) out if the carpet with your wand you are keying the trigger............
If I am right try changing the way you clean and take a good look at your pre spray.................if you are working that hard then your pre spray is not doing its job............
Good pre spray ....agitation with a rake or what ever you may use...little dwell ...and slow steady nice uniformed wand strokes....key on the back stroke...................
if I am not right..............then never mind........