Add new movement type/speed with item

[athelu]

Hello,
Creating a magic item that gives a user a swim speed. The ability i want to assign (I believe) is:
rcPFTAb019

However, if i bootstrap this to the item it is in effect, regardless if the item is equipped. How do i force these to be equipped before enabling the ability?

I do have an eval script in place, because i am also giving a swim bonus, and this is working as expected.