I've tried the 10W-40 semi-syn Duron in my SV650. I find it shifts better with the Duron than 5W-40 Rotella syn. I was tempted to send a sample in for testing, but meh...
I'm going to try the 15w40 Duron in the future, but still have to work through my 'stockpile'.
I'm also thinking of putting APRS on the bike, mebbe a 19" whip mounted through the licence plate and MicroTrak under the passenger seat?
de va3rr-1