After testing the Springs, Brass Cones, Other selected Cones (other materials) I ended back with the LTR Tuning Blocks on the BP LTR Platform, and this all sits on BP LTR Tuning Rails.
I'm going to let things settle more before I use the Top Tune Canopy. When finished the CDP will have Top and Bottom transfers. This may sound new to some of you but if you want to visit TuneLand you can see pictures.
Listening to some John Klemmer at the moment.
Michael Green