And even more bizarrely... it crawled its way up to the 7400K block, and now it's going at normal speed again! 10MB should be done soon. I have no idea what could be causing this major slowdown from 6.6-7.4 MB. It's not the drive because two different ones do the same thing (and they work perfectly otherwise)... Hopefully I won't have to go through the (edit, reassemble, relink, PUTR transfer to an image, vtserver to the disk) loop too many times, attempting to get my DHV11/16D to function with TSX+ 6.50... I had somehow inserted a couple of characters that didn't belong there while editing (bumped the keyboard maybe?) so I'm on the second pass. Also I found what looks like a typo in the TSGEN.MAC file if anyone's interested.