I guess you will have to suffer in those Vibergs
I can't really say for certain, as different people report different experiences. My Unlined LHS were my first pair of Aldens, and I got them TTS (9.5) not knowing anything about lasts or sizing down. A few months later I went to add a lined pair in a different color and the 9.5D was too big. Exchanged for a 9D, better but still too loose. Exchanged for a 9C which is spot on. I subsequently added another lined color in 9C.
I think a big part of it is that the unlined is more forgiving because it is more flexible, and the lined is stiff, so more prone to heel slip. So in my experience, the unlined is not tighter fitting, just more flexible so you can tolerate a larger size than you could in the lined. The back of the heel on the LHS comes up very low on the back of the ankle, so it doesn't really lock your heel in very much.
In regard to the tightness across the instep, I experience a little bit of that at first. Not an impossible amount, but it does sort of bunch up my sock on the top part of my foot above the tongue. Once my foot settles into the cork bed a bit, and a thread or two stretches or breaks, they fit fine. (See Pic)
I guess if it's just a little tight at first, it may work in the end, but if it is foot throbbing circulation cut off, probably not. Also, the unlined may be a little more forgiving in this sense, because while shell stretches very little, if at all, lined shell is going to stretch or mold to your foot even less.
So my conclusion is that the lined and unlined probably fit the same, the unlined is just more forgiving due to increased flexibility.
Also, I do believe that unlined shell can be wrapped more tightly around the last than lined shell, so the unlined may be a little tighter as a consequence, but not like a whole size difference.
Glad that you found my pics of the 9016 helpful. They often went overlooked when I posted them, so I'm glad that they were finally inspirational to someone. I'm pretty pleased with my 9016s and they look excellent with a charcoal suit. Better than Color 8 with Charcoal, or Color 8 with Navy, IMO. It is sort of my NYC Power Combo. As you know, we wear a lot of charcoal, while in other cities, folks wear brown and olive suits, which we really don't see much of here.
I ordered some Alden shoe trees online and so far my order is still good. I knew I should've ordered the #8 LWB and/or PTB!!!