I've been smoking St Louis style, Country style and back ribs for a short while now and i have a question on tenderness. I find that my spare ribs after about 5 hours have a good smoke profile but don't have that "it" tenderness. They aren't tough or dry but aren't notably tender either. I smoke at 225 with a 50/50 mix of lump hickory and kingsford. I use a dry rub and a vinegar based mop during smoking. So far i haven't had any complaints, (everybody is too drunk and hungry to know the difference)...But i'm striving for that clean bone tenderness that you get from oven cooked ribs. Is this feasible??