Well..i tired them out (the two that i know of) on my IIsi with 
internal and NuBus card (RasterOps 24Sx).
	When i run the 2 grf kernels with the monitor connekcted to the 
NuBus Card...it bugs out on me when it gets to the bootstrapping pmap 
system...(one of those nice "you're hozed" messages.
	When i run with the monitor connected to the internal video..it 
hangs on me when it tires to probe grf1.

	When i went back to GENERIC 52, i booted with the monitor 
connected to the internal video, since i know it doesn't boot when the 
monitor is hooked up to the NuBus card..anywayz...it probed grf1 ok and 
all..recognizing the card type and all.    I also played with the VBL 
interupts and no luck..  is there still work being done on the grf 
kernels?  any new releases?

-Mack

Mac IIsi 9/250 netbsd partition
Sys 7.5.1
NetBSD 1.1 w/ GENERIC 52
NuBus - RasterOps 24Sx 24-bit card (not used when booting netBSD)