I have never heard "wool" dive socks.

Currently I just use regular neoprene dive booties that have hard rubber soles, when I use my fins.

Should I invest in some different type of dive footwear such "wool dive socks"?

Blake...

Wool dive socks are NOT a bootie. This is what they are:

http://shop.navyseals.com/navy-seal-dive-socks-389.html

You have to wear them as your socks during BUD/S. Booties are a totally separate deal (and you obviously have to wear them with duck feet).

NGF

These socks are ok, just don't dry them. It's sucks trying to stick your wet foot into a wool sock that has shrunk because you've dried them.