Well, continuing on from the previous post, I went ahead and scored a Paracorr visual with tunable top off Astromart just now. Ended costing me AUD$340 landed here, and is (apparantly) in excellent condition, hardly used, 6 months old. Couldn't resist after what you fellows said (thanks John!).
Once I get it, I'll try and give you my impressions on how well it works. Will be primarily using it with Pentax 20XW and 14XW. Will also try it with the 30XW, although I must admit, this is excellent already. I'm hoping it will clean up most of the remaining coma in the 20XW anyway. Can't wait!
Clear skies
Nick