I have the compact version of the same pistol, and i hoped for the squared slide and the tac rail. I got neither.
The frame with the rail is longer than the standard frame, so I dunno if they have it on a Compact frame. I wish I had the no-rail version on my Match. Go figure.
Lol, the grass is always greener right? I wanted the rail so i could mount a light for nightstand duty, but i guess it was a blessing in disguise that i didn't get it, or finding a holster for it would have been even more of a nightmare than it already was.
As for the rail on the compacts, i've seen them, but never held one. The slightly longer dustcover comes just short of full length, leaving around 1/4" or so of slide showing.
Back to the point though, i think the squared slide will suit you well. Almost all of the cracked slides i came across during my own research were the newer rounded slides. Until i put a MUCH stronger spring in my rounded slide i was afraid to shoot anything more than the most watered down 10mm i could find. Now i still tend to shoot weaker stuff since its cheaper and i don't reload yet, but i have since put a few boxes of some pretty stout stuff (re: buffalo bore) through it with absolutely no ill effects.