Cutthroat,
I haven't used either, but I have a 332 on my boat that has the same feature. I tried it several times last summer just for fun. It behaves much like my neighbors vexilar. I think you will be happy with the unit, but I will guess you will use it in the normal graphing mode because you will get the instantaneous readout on the side plus you will see the history. I like this, it helps my brain process other info, like where suspended fish have been... If I could use my 332 for ice fishing I would, color and 480 lines resolution is great!
Ter