Your post is reasonable in thought, as it makes sense, however, if you have played around the country as I have, the 3.3 and so called 4.0 are just window dressing, aka tip of the iceberg....................and no, they are not melting and will drown us in 10 years, ...but that is for another blog!
What I have found through experience, is you will have to modify or build a team for each league you play.
most leagues are Pro nfl type leagues, if you have a raiders team out fitted on both weight classes, ...............suppose the league you want to travel to play, already has a raiders team?
Each league has their "flava" with regards to rules, they may restrict certain figures, they may restrict they way you weight your players, ....... ie. lead tape or boiled bases, weight under the base only or allowed to be on the figure...........