FCS II Harley Ingleby HI Mid PC Tri-Fin SetHarley Ingleby's Mid 6 and Moe mid length models have become some of the most popular in this category. The FCS II Harley Ingleby Mid PC Tri Fin Set is Harley's preferred fin set that's spec'd to work on longer boards and encourages a more progressive style of mid length surfing. HI also rides this set on in other hybrid shapes. The HI Mid set can be applied to any mid length, or ridden as a Tri Quad setup with the addition of the Harley Mid Quad Rear