i wouldnt use executive on aros68k. does it even gives any measurable advantage there or is it supplied just "because we can"?
i would generally discourage using system patches at this point except they are really used on purpose, as apparently it is the case with muforce even though i have not tried it up till now.
aros should and will incorporate expected features itself beyond 3.x compatibility, and there is work done on that. it is important to concentrate on what is included in aros as this can be improved instead of using 3rd party closed source tools as this had to be done on 3.x.
for instance mattheys asm optimized memcopy functions have been committed by toni few days ago. as it is not a common knowledge, someone might get an idea to patch them with less effective ones expecting better performance than original 3.x ones. this is counterproductive.
aros is there exactly to make this wild system patching obsolete, and as happy i am about the likes of powerwindows on 3.x im much more happy thet i dont need them under aros.