Well, I drank the cool aid and ordered the AK-20's and Bitubo rear shocks today for my 09 SERG. I did order through our local TD installer here in So Cal and he "assures" me that the order will be in by this time next week, front and rear. I scheduled an install for a week from this Friday, so hopefully I will not have a lack of communication that some others have had from TD. I think my installer will make sure they arrive on time and stay on top of this. The Bitubos are being discounted $200 by TD which makes them only moderately expensive vs. extraordinarily expensive
The discount is on their website.
If all works out, I will have a pair of chrome, 13" Progressive 440's in great condition on the selling board next week.
Will post results/opinions asap.