Werbil,
I'm interested in your radial flying...I'm in a similar situation and find that although the BOSE are good in a cabin-class aircraft, they simply lack the passive capacity to offer much benefit in a radial. I have a Campbell Aero Classics setup but find it a bit confining.
Are the Telex really a lot better in our situation?, b/c I sure need something better than the BOSE. The new Lightspeed ZULU looks promising too.
PHTR