My 1995 440 aft cabin has two 50A power inlets. When I bought the boat it came with two long 50A cords which then go into a splitter, and I plug this splitter into a single 50A shore outlet. This has worked fine so I don't think I really have the need to plug into two 50A shore outlets.

We're cruising so each marina is different, but I was thinking about buying an extension since there have been a few times our cords wouldn't reach. Since we normally use only a single 50A outlet, is there a problem with buying a single long 50A cord and have a splitter on the boat end instead of on the shore power end? This would be much easier to deal with instead of hassling with two long 50A cords. Depending on the length I was thinking I could have a single 50A extension just in case.