yes provided you don't have a physicaly big simm module pushing the trapdoor into a bulge... ;-)
i found that the scsi module gets caught on the inside lip of the trapdoor hole, idealy the accelerator should sit flat on the lip, and the scsimodule should fit inside it...
i have the top cover off my machine at the moment untill i can get a PPC card, or get bored of waiting and get an 060 instead, so i was able to see where it was catching on the plastic.
:-)