
OK, first, I don't think you mean, 'compensation'. I think you're referring to barrel muzzle porting. The second question that comes to mind is, 'Do you really need a ported 9mm barrel?' The 9mm recoil is already quite light; and, unless you're an accomplished speed shooter, you're not going to realize any significant advantage from the additional expense.
This being said, I do use extended and muzzle-ported Bar-Sto Precision barrels on all, but two, of my semiautomatic pistols. Here's the thing: The Lone Wolf barrels are a good piece of steel; but, a very high percentage of the chambers are exceedingly tight and the edges around the chamber mouths are too sharp. Personally, I would NOT use an LWD barrel for everyday carry. However, 99% of the time, an LWD barrel will simply drop right in.
And, there's the rub! I've been buying and hand-fitting my own Bar-Sto barrels for many years, now. In fact, if you want an accurate pistol you do NOT want the barrel to simply drop right in. You want it to be carefully custom-fitted in place with all of the excess tolerance (slop) taken out of the barrel's hood and lugs.
I, also, shoot Glock pistols that will go, 'neck and neck' with all but the most expensive and tightly fitted of 1911 pattern pistols. (Of course I've made other improvements, too; but a well-fitted barrel is a big part of the accuracy I'm getting.)
Hand-fitting a semi drop-in barrel ain't that tough a thing to do. It takes a good eye and a lot of patience - That's all. The only tools you'll need are a set of flat diamond knife sharpeners, a machinist's square, (or a flat pane of window glass) and a Dremel Tool with an assortment of polishing heads.
The first one I did took 3 hours to complete. The most recent took 45 minutes. I have an armorer friend who's actually had to do more work to an LWD barrel than anything I've ever had to do to a Bar-Sto. In fact, I'd be less than satisfied with any Bar-Sto barrel that just dropped right in. (Which is, 'Why' I've ordered all of my Bar-Sto barrels directly from Irv Stone.)