"my sweaters seem to be to long to wear with my SWK and tank. No problems with my UKs and PK, just the traditionals."

SWK, tank, UK, PK...huh???

My favorite sweaters are a very thick and heavy wooly thing my brother brought back for me from Scotland with leather shoulder and elbow patches, and a black English made V-neck uniform sweater with nylon shoulder & elbow patches and epaulettes (similar to USCG issue). Never had a problem wearing with a kilt, sporran, etc.