I started looking at tandems recently, after seeing a beautiful Trek T2000 on a century ride. Unfortunately, I am borderline on being tall enough (5'6") to be captain on the smallest Trek or Cannondale tandem (top tube on most is 55cm). My wife is 5'2", and should fit the stoker position for a small tandem without much trouble. I wouldn't mind having my kids ride int he stoker position as they get older.
Our local dealer pretty strongly recommends the Co-motion Periscope. It looks great, in terms of flexibility--but its over $3000, and has parts comparable to most $2000-2250 tandems. I have a hard time justifying the extra cash, just for telescoping seat posts. Comparing the parts list of the comparably priced Trek T2000 and the Co-motion Periscope is downright depressing. Of course, a custom-built tandem that would perfectly fit both me & my wife would easily exceed the Periscope cost--and not provide the flexibility with growing children. Still--telescoping seatposts on a single size frame should not cost an extra $750-1000 over standard production tandems. If anything, only needing a single frame size should help bring down overall cost and make it very competitively priced. Maybe it's because Co-motion is a smaller specialty manufacturer?
Has anyone ridden a Periscope? Any opinions would be appreciated.