Currently revisiting this machine. Seems like the port decoding was simplified so much, that some Covox programs crash (https://zxaaa.net/view_demo.php?id=5836 [black screen when selecting #DD and distorted output], https://zxaaa.net/view_demo.php?id=11931 [never works with #DD, distorted on #FB], https://zxaaa.net/view_demo.php?id=3019 works nice).

Has anyone of you used a ROM with a more recent version of Shadow Monitor? 2.7 is sufficient, but 2.95 would be nicer. It mostly works but selecting TRDOS 128 from the menu makes the drive spin shortly and then hangs (accessing TRDOS from 48K Basic works).