When dripless seals
fail, they fail at the boot. That is why manufacturers specify that the boot should be replaced every six years. Make sure you follow that schedule. Also make sure that the vent is properly installed so that it cools properly and you don't get air pockets.
The major shortcoming of dripless seals
is in the unlikely event your shaft comes loose from the transmission
collar and the shaft pushes forward, separating the seal plates. Pretty much time to pull out the liferaft
if you can't get the ensuring flood under control.
That said, if you decide to stick with dripless I would take that thing off and put a PYI on it instead. I just don't think that one should go with any critical piece of gear
who's primary marketing
message is that it's cheap
. Also don't like the split collar design on the Lasdrop. That's just a Big Problem waiting to happen.