I can't vouch for that brand, but you'll find the SF9 100 RHFP works like a charm. That's a bargain, get a few and see what you've been missing.
With any pressed bullet, you'll find they are subject to fracturing, be it a Sinterfire product or a mil-spec M160 bakelite (I believe) frangible. Throw the round onto the concrete floor and it may break if it hits the floor correctly. Also note the standardized warning, primarily for revolver use, on the Sinterfire website.
My experience has been flawless to date. If you inadvertantly crimp a frangible, not recommended to begin with, you can fracture them.