030 friendly isnt a big issue. The probem with ULS and the Falcon is actually HDDriver!

As most falcons have large (for atari standards) hard drives containing many many partitions, HDDrivers buffer sizes become insanely big.  And HDDriver being such a close guarded secret by its author for no apparent reason, gives us no access to its structures to disable caches.  

Hell you cant even turn them off - it FORCES you to have some.

Its a long standing debate with us at D-Bug to either struggle on in the face of crappy drivers, or dump HDDriver support and go with something like, eg, ICDTools. (20k footprint... much nicer)

Anyway, thats the state of play. Personally i'd like Uwe Mentalman to open source the damn thing (after all who buys atari software 20 years on?) for the community and give us access to its data structures to disable the caches by a system call.  Won't happen tho, he's far too protective.

CJ