I have been using the titebond premixed hide glue for a while now.
It is the way to go.
Super strong like hot hide glue but as Simon pointed out, a lot less hassle involved as it gives you more working time.

I put it through the DB destruction test and it performed better than aliphatic resin.
The glue joint didn't break, it tore out timber either side of the join.

Gret thing is if you need to remove a neck or fingerboard glued with it all you need is a little bit of steam and off it comes.
Then simply sand back to bare timber and re glue.