Not so sure it's a bad fit... IMHO and from much experience, the penis pouch and ability of the diaper to actually move between the legs is a requirement for comfort, being able to move and increased absorbancy. Unlike tighty whities or other fabric form fitting underwear, diapers are not spandex-like and therefore will never press firmly against all areas of the diaper area when applied. Too tight also means cannot expand / doesn't have room to contain the wetness or messes. Since plastic doesn't stretch (in theory!) the dry fit should leave room to expand in the important areas.