I just received a TV-85. Views with 18.2, 13, 9, 7 and 5mm DeLites were great, as were
the views with 17.3mm Delos, and 6mm Ethos.
The 3-6mm zoom may be a good eyepiece for some scopes, but one of the reasons I
don't have one is the smaller FOV, and exit pupil. Looking through a TV-85 @ 3mm
(with a barlow) I can definitely notice the darkening from the smaller exit pupil.
If you are looking @ planets, wide-fields are great for drift time if you are not motorized
on an EQ.
You may want to try an intermediate focal length first.