I always file and sand a Ti stock to make it feel right for me
The wrist needs thinned and every single sharp corner will get a heavy radius......for feel and to hold paint......sharp corners chip paint
Usualy the bolt handle slot needs cleard because it is eather out of center or not deep enough to allow a full bolt closure......lots of file work here
All the action bedding/trigger gaurd bedding and barrel floating are then done before paint
I sand off all the factory paint down to the gel coat then start the layering process.
If I drank in between each step I would never finish one up