I have recently started to train (through my karate) some of the makiwara training and forearm conditioning.

My question is, do you need seperate jows for each of those activities or can you use one type of jow? I have read that you can use the same jow for makiwara training as you do iron palm and some companies sell a jow that is for both of those. Other companies say that you can't use their jow for iron body training, but only iron palm.

New to using jows and would like some input.

Thanks