Stud Distances...

So i've ordered a OmniMount U3T, and it has 16"-24" stud coverage. I am mounting a 46" LCD, but want room for upgrading to 52" in future. My problem is the wall i'm mounting to has a stud dead center of living room, but has an awkward stud approx. 4" to the left. With this mount i can only reach 2 studs.
Would it be pretty stable if I mounted using 2 studs only, and they being so close to each other?

Any other configurations would put bigger screens off-center.

Thanks.

EDIT: i've attached diagram if it helps.

With such a large set, I recommend removing some drywall and installing a horizontal "bridge" between the standard 16" on center studs. Then, secure the mount to the two studs and the horizontal runner. It's a little more work, but I think it is best to err on the side of caution.

May I suggest getting it installed by a warrantied professional? They'll probably use your two existing studs with humungous lag bults and then to be extra secure they'll put gigantic toggles in place. That's what theyw ere going to do in my place because it was Plaster and Lathe and the studs were funky. but they managed to catch two studs in a good spot. The guy did a chinup off the mount when he was done hanging it so I'd be satisfied.

This is one of those things where (I'm a professional craftsman, I do metal work) I'm very competant with my hands and I still hired someone because if they screw up it's on them, if you screw up, it's on your wallet.

Marcallo, may I ask what your installation cost?

I'd rather not cut drywall out myself and bridge. I can do it, but like you, I want it on someone else.

If you can identify where the studs are, you can get a piece of 3/4" or 1" plywood cut to be a bit smaller than your 46" set. Then use lag bolts to secure the plywood sheet to the studs. You really don't need to remove the drywall. They do that so the plywood does not stick out, but moving the set out 1" even is not that big a deal. To locate the studs, put a hole large enough for your hand in the center of where you are going to mount the sheet. The sheet will cover it anyway. Then cut a hole in the sheet where you want the wires to come out and maybe it will be over the hole in the wall anyway. Once the plywood is mounted, it can be painted the wall color. Then attach the mount to the plywood.

btw, two studs would be plenty without the plywood. The plywood would just allow easier alignment left to right.

Then attach the mount to the plywood.
Yes, agree, but . . .

I would NEVER mount a set (especially a really heavy one) to a sheet of plywood using lag bolts or similar.

The plywood solution is great, and 3/4" is more than sufficient IF you:
use 1/4-20 T-nuts installed in the back of the plywood.
This will provide totally adequate strength for the mount and the mount will never pull out or get loose.

1 other thing to mention is that LCD TV's a pretty light for the most part. The 46'' Samsung LCD's I checked on only weigh around 50 pounds without the stand. As long as your studs are in good shape, 1 stud will easily hold that weight if attached properly. I purchased a single stud mount articulating mount from monprice for around $35.. Works great for my 37'' LCD I recently mounted upstairs. It only weiged around 35 pounds but plenty of weight to spare. It could eisily hold more than twice that. Of course 2 studs is better than 1, but in your circumstance, 1 may do the trick.