@bigbruce is the dance floor really that tight on the Striper's? I was thinking that the 2301 might be the route that we go in a year or two. It's no Grady or Pursuit but it does offer a lot of boat for the buck. Does your 2101 have the integrated bait tank on the transom? Would how many 15lb tuna do you think it could hold in an ice slurry there? Then one igloo cooler on the deck and one in the cuddy. It's a squeeze but should be doable.
I think guys over think the whole tuna thing a little. Obviously you need to take safety seriously but we can't all afford 28' Grady's. We did just fine in our 20'DE. The limiting factor with a small boat will be ice. If you don't have the ice you can't keep the fish. It's that simple. The other factor will be weather. The weather will dictate weather you go out or not but to be honest I seriously doubt that the bigger boats are heading out 50-70 miles on a snotty day just because they can. It just wouldn't be that enjoyable.
Our experience in a smallish boat was great and so it's easy for me to be positive about it. The one mistake we made was not holding out for a buddy boat. If I were to go again I would make a better effort to find another boat to run with. Each extra boat that comes out exponentially increases the likelihood that everyone comes home safe.