Thanks for the replies.
My hunch is that you're right HarryT, though I'm hopeful that by the time I try this that some mechanism will be in place to make the transition.
SteveJ, when the time comes I'll certainly be in touch with the magazines. Based on past experience it seems that there is a serious disconnect with most magazines in terms of customer service. But, I've been an early adopter before and so know how these battles go. A healthy dose of patience will more than likely prevail.
Thanks again for your input!