I do. But the liner problem is pretty obvious. The mid-buckle (the Boss is a cabrio) is entirely cranked down, and the ankle pain is evident, and new. At 116 days, packing elsewhere in the boot might not have happened, but at pressure points, it has.
The Boss liners are pretty soft from the get go. It's also a high volume boot, so wondering if that might need to be revisited. On replacement liners, doing a Boot Doc foam liner is only worth it if you really like your shells and they're serviceable, etc... You're on the fence, and don't like how they flex. You've answered that question. Intuitions can be re-cooked if you buy a new shell, an yes, they'll fill some extra volume over your instep... for a while, but if the boot has too much volume, it won't matter. You'll have spent $250 for a temporary solution for a boot you don't really like. Again, you've answered your question,
The shop... There's no way they're going to have the range of stock on hand that they'll have in October. An honest shop this time of year will say," yes, what we have left is on sale and we may have a good boot for you, but there's a very good possibility we won't." These are your boots. IMHO, I'd BOTH find another shop AND wait until October unless you know exactly what boot and which shell size works for you and they happen to have a pair. Sounds like you're in transition and need a good fitter.
Last one... Speaking only for myself here and will undoubtably offend Dalbello cabrio boot owners, but I see very few (I'm sure there are exceptions... Josh likes his and I'm sure he's fine) skiers flex their ankles well in this design. The whole upright thing, again, IMHO had gotten to be sort of a blanket mantra that ignores individual anatomy and skier needs. All that above? Yup. New boots.