Thanks. Don and I have missed each other twice, when he was down for the blade show.
(My fault both times.) Good articles.
I have typically trained with the weighted chain. With something like this, the weight tend to naturally snare limbs, if you know how to swing it. (Or, one can deliberately just hit with the weight.) I feel this type of weapon has the most utility, combining the striking and the trapping ability (and, in the gravest extreme, easy lethality).
All Don's comments about caution when training with these apply.