My adaptively damped car had its springs changed recently.
I now have Birds b1 springs to compliment the Birds ARBS, Quaife LSD, and M4 LCA's.
The point and squirt handling & feel of H&R remains and the ride is marginally less firm.
Springs are still settling but here's some photos
Car at Birds with H&Rs
Car with B1 springs a few days later
B1 close ups - front with LCAs
B1 rear
Rear is settling ride height wise as arch gap was bigger when it was 1st done.
BP