It sounds like you have about 100 rounds through the pistol? I have to admit my SD9VE has NEVER bobbled with any ammo HOWEVER there are more than a few manufacturers of pistols that cost WAAAAY more than your SD9 that recommend running alot more rounds than that through them before its "broken in".

In fact some manufacturers wouldn't accept a pistol for return until alot more ammo than that has been run through them. They'd say keep shooting it some more and THEN we'll talk about it!

I've fired a fair amount of Monarch through mine without a hitch but I have to admit I do some "cleanup" on all of my pistols before I fire them, even for the first time.

I'm guessing you have a nice, tight SD9 that'll take a few rounds through it to loosen it up a bit.