Many valid comments. It's interesting that many of the opinion answers you get on the boards are skewed depending on the nature of the player giving the answer. I don't mean that in a bad way, but for the game described, using hilo full indices you might expect about $48/hour with 80% pen. That may be fine for a recreational AP, but not quite sufficient for a pro. Is EV of $48 making money? Only you can decide that. The point about BR is also relevant. A rec(kless?) player might play 1-15 at a $15 min table with a $10K BR but they should be wary of a 25% RoR. No pro would do that. Many knowledgeable rec players wouldn't do that either. Are you really entering a game to "make money" at $48/hr if there is a 1:3 chance you'll go broke? Once broke, you'll be making money by more conventional means. "Would you like fries with that, Ma'am?"...
To me (a rec player) that $15 game is not comfortable with a $10K BR. Spreading about 1-6 provides the minimum RoR for that game on a 10K BR. As you spread lower or higher RoR increases and even at 1-6 you run almost 17% RoR. Find it as a $10 game and it makes all the difference on the downside, though the EV is reduced. I'd rather play with under 10% RoR and have a lower EV, build up the BR and then increase the spread. But that's my opinion.
Btw, the HE on basic strategy for that game is about .4%. So flat betting $15/hand using BS you'd expect to lose $6/hr. Surely, that is not making money. Of course, you could bet more...and you're still not making money!