First off, thanks for this board and all the contributors.
Here is my situation. I am taking up a ceramic floor in my kitchen. Total size of 12 x22 and replacing it with solid hardwood.
I have 3/4 plywood subfloor on 16" centers with 3/4 plywood underlayment. My base cabinets are sitting on the underlayment with the tile cut to the base. I originally thought I may be able to save the underlayment until I got started.
With thinset remains and pieces of wood chunks coming up I quickly realised it would not be worth my time trying to make it usable by patching and sanding. So now I am going to take up the underlayment either completely get a toe kick saw and cut along the cabinets.
The flooring manufacturer (Somerset) says minimum of 5/8 subfloor. I thought I would lay down at least 1/4" underlayment.

So now I ask, should I add the underlayment?
Should I use the toe kick saw and save the aggravation of pulling out all my base cabinets or should I yank it all and lay the hardwood under everything?
If I pull the 3/4 underlayment it also gets me even to the carpet when i am finished.
Sorry for the novel