HA Boliven Pig Fluo is highly fluorescent and is a clear favorite in clear or glacier colored water and fish well all season but best in spring and late summer. Fish it in the deepest pools where the water moves slowly and as deep as you can with a real sinking line and slow strips to make it swim. Recommended hook size: #8 treble, #6 double, #4 single. Guideline HA is a salmon tube fly series designed and tested by renewed angler and fishing guide Hajas Andersson from Åre, Sweden. He works at famous Hembre Gård by river Stjördalsälven and his flies are produced and distributed exclusively by Guideline.