Got your PM :-)
Hmm.. they shouldn´t be wrong because I haven´t touched the roms after I turned this Amiga off for some parts for my A3KT. To be absolutely sure, I will put the chips back and test it. But I´m pretty sure that is why you have to use the romtower, a flaw in the production of these motherboards was made and they fixed it with a romtower instead of making a new motherboard.
I´ll test it later(much later)tonight and post the results. :-)