do you need to tear the metal shutter off of a modern 3.5: floppy for it to work in an SMC-70?

On Tue, 29 Jan 2013, Chris Tofu wrote: The VERY EARLIEST 3.5" floppies did not have shutters AT ALL. Later 3.5" floppies had a spring loaded manual shutter; you opened it manually, at which point it latched, and then there was a specific point on the disk to squeeze ("PINCH") that would release the latch and the spring would close it. I used an SMC-70 with those disks at Comdex one year. Later 3.5" floppies had the current "automatic" shutter. BUT, for many years, it still had the "PINCH" spot label. THEN, it just had an arrow pointing to that spot, but because that also indicated which end of the disk to put into the drive (DUH.), there wasn't a need to remove that mark. When I finally got an SMC-70 ~15 years ago, it had modern style drives. Didn't the 600RPM "full height" 3.5" drives (the earliest ("FIRST"??) 3.5" drives?) accept modern "auto-shutter" disks?