Small/fast reflector as a piggy-back?

I would like to know if anyone has used and been satisfied with a small reflector (4.5-6 inches approximately) as a piggy-back scope on a larger scope? I tried an Orion 4.5 (advertised for imaging/light/fast) but it was poorly made, tube was weak, focuser was pretty bad...etc.) so I sent it back. Since then, I have noticed a few 6 inch available that may have been improved and come from several places. I use a 80mm piggyback refractor on a Dob, but continue to be tempted with using a 6 inch reflector as a nice balance and still get nice wide field. Of course, it has to be light but with better characteristics than my experiment with the one mentioned above.

This gets attractive also since one can cram an astrovideo or camera in the reflector or even use the little reflector as a stand alone. I do most of this with an 80 refractor but a reflector about 6 inch may give a little more aperture but still have wide field.

Any one tried this and care to comment on the experience if it was positive?

You might look at Takahashi.

Gary

Thanks for the comments. I will be on the look out to check some out as we are around star parties. 3 years ago I could not find a suitable candidate at 4.5 inches that was relatively tough, still light weight, and could deliver decently with EPs or astro video. But the field is wider now and, as both of you suggested, it is still a viable way to go. I am a hands-on kick-the-tires guy, so I will see if I can find a little fast one that might suit. Worse comes to worse, Orion does permit a return if it does not suit if I tried their "improved" 4.5 or 6 inch. Weight is a key. I attach things to a 12.5 Dob and don't want to upset a c.g. that is already a little high, so whatever the candidate is, it cannot weight much more than an 80 refractor setup.

I used a home-made 4.25" F/4.4 reflector as a finder on my
18" Dob. It was great -- you could find a lot of stuff
in that little scope. It was mounted on the mirror box,
so the impact on balance was minimal, and the eyepiece
was comfortably located. It was nice at public star
parties -- two people could look at the same time, and
get different low / high power views of the object.
Sometimes people liked the low-power view better.

Thanks again for the ideas and comments. I am real short on time and confess to never having made my own stuff with optical pieces. It sounds neat to do but I am not sure I can get there without an effort in time that is already in short supply. Like another poster mentioned, I also like getting people around the Dob where one can see 2 views (the "big" dob view as well as the piggyback 80 view), so eventually I may try something in line with the comments I have seen. I would just stay with an 80 refractor since we are using it in several ways, but at home the piggyback arrangement with another couple inches of aperture but a short focal length (probably a light reflector) might really be a nice balance with the larger aperture but still deliver a nice wide field punch without an exhorbitant price tag. Wish I had more time to pursue some ideas....

Roland