Subfloor Prep Question – Filling Edges of Floor Area

Q: I am installing your Ming Dynasty bamboo strip flooring in a kitchen. Can floor leveling compound be used along the edges of a subfloor, where the floor meets the wall? (And how thick can it be?)
I’ve already installed my plywood subfloor and underlayment, and the field is pretty level and flat. I’ve done a similar installation before, so I’m comfortable with the main part of the floor.
But, at the EDGES of the subfloor, I have a bit more of a problem. This renovation involved cutting out the entire floor deck as close to the walls as possible (right up against the rim joists). Then, I installed new joists against the rim. (This was all to solve some structural problems–sinking piers and so forth.) The problem is that now I have a nice, flat, level subfloor right up to about 1″ away from the walls, but that last little 1″ around the entire room is a wavy 1/4″ below the level of the subfloor. That rim is well supported (I’ve installed bracing all the way around), but it’s too close to the wall to trim out, and I think it’s too wide NOT to fill (particularly at the doorways).
What I’d like to do, I guess, is build up the 1″ gap around the rim of the floor with leveling compound. But I don’t know if the leveling compound can be applied at the edges or only in the field. Plus, it’ll be filling a fairly big gap.
I’d planned to glue down the flooring because this is a kitchen. Any danger of the leveling compound coming up from the gaps if the flooring is glued down to it?
Sorry for the rambling explanation here, and thanks in advance for any advice!
A: I feel very comfortable in recommending that we forget about using a self leveler and just use a floor patch such as FixAll. Just mix it with water to a nice trowelable consistency and work it into the gap between the new subfloor and the walls. Then take a regular flat finish trowel and finish it flush to your subfloor. Most of today’s floor patches are of a latex modified variety so fills can be made up to 1/2″ at a time. Neither Portland nor gypsum based patches when dry will be effected by today’s adhesives. No worries here.