You are over thinking this and missing a couple of things at the same time----
Lifting an edge and gluing what you can reach---no---you will pull nails through the board some where and end up with hollow spots when the stray nail won't let the board go back down.
Just screw it down well and get rid of the squeaks that way---
3/4" T&G ply is over kill and not the best for a finished floor---that is CD grade and will have open knots and some voids---to rough to put sheet goods over---
Best to use 1/2" BC grade---then add a layer of 1/4" sanded underlayment---installed with 1/4" small crown staples ---Multi Ply is one brand---
Avoid Luan Ply---that falls apart when it gets wet and sometimes will not allow your glue to bond due to the occasional board with to high a resin count----
Lifting an edge and gluing what you can reach---no---you will pull nails through the board some where and end up with hollow spots when the stray nail won't let the board go back down.
Just screw it down well and get rid of the squeaks that way---
3/4" T&G ply is over kill and not the best for a finished floor---that is CD grade and will have open knots and some voids---to rough to put sheet goods over---
Best to use 1/2" BC grade---then add a layer of 1/4" sanded underlayment---installed with 1/4" small crown staples ---Multi Ply is one brand---
Avoid Luan Ply---that falls apart when it gets wet and sometimes will not allow your glue to bond due to the occasional board with to high a resin count----