One of the flooring contractors for whom I got some really good references for both new floors and floor refinishing came today. This is one of the several contractors who told me that no way would they attempt to refinish a floor that had linoleum glue and felt still stuck to it.
Well, he came in today, saw how much I'd gotten totally off, saw how much I'd reduced the thickness of the rest of it, and thinks that they can refinish it. He pointed out the 1000 ways that it won't be perfect - the areas where it's been painted, the area that had been under the original cabinets up against an area with many stains, other stains, other significant dings, the many plumbing/heating holes they'll need to plug, etc. But he seemed actually very excited about refinishing it.
He didn't give me an absolute guarantee though. He said that they'd not really know until they started, and if they start and it clear is going to keep seriously gunking up their equipment, they'll have to pretty much stop right away and give me the choice of our manually taking the felt/glue down even further, or applying my deposit towards a new floor. But he seemed genuinely excited about seeing that it could probably be refinished.
So, fingers crossing here. He already warned me that the quote to refinish that floor will be somewhere between a normal refinish job and a brand new floor because of the extra work involved (lots of plugs, nails, a place that currently has just a 2x6 that they'll need to figure out how to "blend", etc.) and that's understandable. But it would just make me so happy to get that floor refinished instead of new floor put on top of it -- as long as I didn't need to take off all the felt/glue crap first.