I almost stopped in to Alpine last wknd. Seriously.
BUT, If I were a guessing man, I'd guess that the sub place is Submarine Tender in Forest Park.
Their subs are Mr Submarine quality, however, the B&G fries (butter and garlic) are quite an option if you dig fried starch with salt and garlic. If I were strictly looking for a sub in the area, I'd be at Alpine in a heartbeat. I'd get a sub and potato salad (made with real mayo) from Alpine and be happier. Sub Tender subs are fake meat things.
This might be the thread you're talking about (left the hilit in on purpose, normally I find it extremely annoying:)
Edited twice - once to throw in the thread link, and another to clarify. Lack of sleep.
We cannot be friends if you do not know the difference between Mayo and Miracle Whip.