I have the Miami Classic II you speak of.I bought it 3 months ago because it allows me to carry my carry weapon and two spare mags discreetly AND comfortably.
Now, the hard part about shoulder rigs is sizing them properly so that you can draw from them properly.If the gun is too low or too far back good luck getting it out when the flag flies.I can get my full size PT99 in action just as quickly as my waistband holster now-which I couldn't do when I initially sized it.
Here's some lessons ive learned the hard way- The way Sonny Crockett and Mr Blonde in Reservoir Dogs wears the holster-with the gun about mid-ribs height-is very wrong. Looks good on TV, but its very difficult to get the gun out from concealment quickly from that low of a height.And Hollywood actors never had to worry about concealing a metal bulge at mid rib height under a jacket in public either.
For an idea of what I mean,hold your carry gun at about mid-rib height sometime and try to reach across your shoulder to grab it.Since your hand has to be BELOW the gun to engage the snap and grab the grip it means your hand basically has to arc toward the waist to get to the weapon. No Bueno, at least for quickly drawing it.
The proper way to place the holster is with the gun as close to your armpit as can be comfortably done, with the thumbsnap about 2 " in front of your arm at rest. It wont look very Miami Vice, but that's the best way to be able to get to the weapon as your hand can just naturally cross over your chest, versus needing to angle toward your waist to get to the gun.
Once the weapon-and mag holders-are balanced right, the next step is practice. I laugh at detractors of the shoulder holster who say "its slower than waistband carry", expecting to just throw on the shoulder rig and beat the timed draw of their favorite IWB holster that said critic has been drawing from for years beforehand.
I can confidently say that drawing from a shoulder rig under concealment for me is equal to the time it takes me to get to my IWB holster for the same gun.Being a beginner at both my draw not lightning fast, but I disagree with the common wisdom that shoulder rigs are inherently slower than waistband carry.Both methods require extensive practice.
As far as sweeping people behind me goes..yet another myth IMHO.As long as my finger and other foreign objects are not in the trigger well the weapon will not discharge.Where it is pointed must be considered when handing it of course but once holstered it is going to be pointing SOMEWHERE valuable.
Examples:cross-draw points the weapon at your leg.Small of back carry points the gun at the back of your behind/tailbone.OWB stong side canted points the weapon at the legs of the person behind you. And what of the armed citizen who works and lives above someone's ceiling and below someone else's floor?Why, then in that case the shoulder rig is the ONLY responsible form of carry then isn't it!
Safety is paramount, but lets not get absurd about it.
Size it right, practice with it, and you'll be golden.
Yes it works wonders in the car, but in certain situations its great for standard concealed carry too.
When youre moving and boxes and crates bang into your holstered strong side gun its not fun.
Neither is reaching over your head and realizing that you've just brandished your firearm to the public in the Wally World beer aisle.
Or getting out of your car and and flashing your steel to the soccer mom in the parking lot because your covering garment got hung up.
Ever had your car malfunction because of a cracked hose in a public lot? Or need to do on-the-spot maintenance to get home?Good luck reaching into the hood without exposing the weapon.Ive learned that lesson the hard way.
Perhaps the best reason-You also can reach behind your pockets if youre pulled over without freaking the deputy and yourself out.Getting shot because you were reaching for your wallet that's located behind your right-hand waistband concealed firearm is an awful way to die, and its a concern that generated a lot of sweat for me when I got pulled over last time with my CCW.
This reply has kinda gone off the rails a wee bit, but im sick of people saying mistruths about this method of carry because of myths and TV programs showing improper form.
[ /End rant].