3 way Audax transmission lines

[big russ]

I picked up some cheap ex von schiekwert Audax HM130C0's a while ago and bought some HM210C0's to match thinking I might build some 3 way WAD KLS3's.
http://www.worldaudiodesign.co.uk/loudspeakers.html

Well the HM130C0's I have aren't quite the original 90db sensitivity (at about 88db) and anyway, having previously built (and loved!) some Transmission Lines with Audax Aerogel drivers I thought I might go the Transmission Line route again.

Plans are for a 3 way using the HM210C0 for bass, the HM130C0 in an open backed baffle and an ATD LeRibbon for the tweeter. I'm also planning to use an active crossover between the bass and midrange and crossover points of around 300 Hz and 5000 Hz.

Somewhere in the archives there are references to TL's built using the HM210C0's. I was thinking of something like a 64 inch line with a single fold but I'd really appreciate experiences from anyone out there who has used these drivers before, the bass quality, the alignment they used and what kind of sensitivity they obtained.

Russ