The only difference between Standard and High-Profile models is the clearance between the main shaft and the winch frame. The Standard models offer a clearance of 3.3″ while the High- Profile clearance is 4.9″. The standard BOA WINCH model can store up to 27′ straps and the High-Profile BOA WINCH model can store up to 30′ straps. If you do not store your straps on the winch, either model can work depending on the clearance available on the trailer.