How many slots?
 

Okie, I was just wondering if anyone had the list of what phys level you need to have to be able to use a certain amount of weapon improvements.

For example, at lvl 37 phys I can handle 12 weapon improvements...

80phys=21 slots if that helps

you start with 5 slots at level 1 physique, and you get 1 more slot for every 5 physique levels you gain.

so, use this:
p=phys level

p/5 +5=amount of slots you can handle

Ah ok, thanks =)