I got my M9 from Adorama 12/23 and my SF 58 flash from PopFlash on 12/24.
I have had a very hard time sliding the flash into/onto the hotshoe and an even harder time getting it back out/off - even with the metal pin all the way retracted - any advise (shall I sandpaper the edges of the SF 58 shoe - anyone ..?? ).
I am almost scared to use the SF 58 in fear of not getting it off or damaging my M9