I appreciate most all of your responses, thank you! I didn't understand the tone of RJsfishin's response which seemed a bit hostile. Otherwise greatly appreciate the help. I found the connection information contributed by pianotuna interesting, as who would have thought there would be that much resistance in the interconnection, but a great idea and simple to do. I'm going to go ahead with the 24MS and 27DC for now only because I already have the new 24MS. When it's time to replace, I'll seriously look at Golf Cart batteries in series, as that seems to be the best bang for the buck in terms of capacity, number of cycles and cost.
