I'll get right to the point. I'm looking for suggestions regarding questions to ask to a seller of a Super D before I ever go look at a plane. A pre-buy inspection will answer some but before that, over the phone, what kind of questions can produce some more insight into what's seen on the advertisement?

Background: have about 50 hours in the SD but it's been about 15 years ago....still flying, just haven't
been in a light aircraft in awhile. I would use it primarily for relearning basic aerobatics.

Thanks for any input.