I had a catastrophic failure (dealer term) of both my chain tensioners over the holiday last week. With 39.4k mi. I knew they were probably close...but noooooo, the ol' bike ('99 ultra) just couldn't wait 'till winter. ...Long story short, I decided to change to the gear drive. After a week, got it back from the dealer this last weekend. Seems to run great. A little gear noise at idle, which sounds more machine like in the cam case. Anyway, my Q is... I noticed on the drive home (140mi) at highway speeds the oil pressure seemed to run between normal or about halfway between normal and 0. It didn't drop at stops (at lights and such), though a couple of stops it actually rose to normal. Chk'd the oil on the road and it was ok. Dealer replaced with HD synthetic (I normally use Mobil1). Before the change it was rock steady at normal pressure. Is this fluculation common with the new system or should I be concerned? Second, I'm reading an awful lot about crank run out. I would think the dealer would have checked this during the upgrade, however now I'm wondering!? Is checking the run out part of the normal procedure the dealer would use as part of the upgrade, or should I question them on it?