Just bought a pair of BT46 tires and will update once I have changed over and ridden them. Wish me (and my zip ties) some luck!!
I saw that this thread was there and I hadn't updated as promised. So to sum up, I have BT46's that I bought last summer and finally put on my bike. I bought from Revco (Canada, costs in CDN$):
Bridgestone Battlax BT-46 Tire Location: Front, Tire Size: 110/90-18, Load/Speed Index: 61H 1 $142.20
Bridgestone Battlax BT-46 Tire Location: Rear, Tire Size: 130/90-17, Load/Speed Index: 68V 1 $197.26
My clutch replacement took longer that I expected and I got too impatient and had too much other work going on to change the tires over so had a local motorbike shop install the tires on the wheels. I had replaced my rear shock with a custom Wilbers shock so that may have contributed to the improved handling of my bike, but I feel a good grip and nice tracking with these tires. I'm no longer at the peg-scraping age so can't really comment on how they might do under more extreme conditions but they inspire confidence and expect that I'll get years of service out of them.