Currently my primary grip training exercise is the farmers walk using a trap bar. I am following WSFSB, so grip training is done at the end of my max effort leg day. I did ME box squats and at the end of the workout my legs ended up being the limiting factor in the farmers walk since I am currently using about 90% of my deadlift max.
So for the hell of it I tried a set of single arm deadlifts ( bar position the same as a regular deadlift)...Damn this is an awesome lift! It feels totally different on the upper body than a FW, but still requires badass grip strength. My biggest problem was balance- I need to buy one of those bar adapters (what the hell are they called?).
Im thinking about switching to the 1Arm DL for grip, but the FW with the trap bar has gotten me very good results for my upperbody in addition to my grip strength. Like I said before my legs are really too burned out to perform extra DLs to complete the farmers walk.
I did read the TNation article on one arm DLs. Im looking for more of a comparison of benefits between the two grip training options. I was also thinking about moving the grip training exercise to another day, but I dont want to fuck with the program.