I got mine off of ebay. My Cannon Unitroll was $90, after replacing a broken spool and a new clutch cover is about $140. My DigiTroll IV was a canabalized unit that was just a body and motor, no electronics. It had a boom with no pulley. Got it for $65. After a new pulley, and a motorcover plus a $4 switch to bring the ball up and down, got about $100 into it or so, now comparable to a Mag10. Am looking for another electric one day, watching for another raped unit that I can rebuild. Not only does this mean I have about 7or$800 worth of downrigger for under $300, but with doing all the work I can now completely rebuild any Cannon downrigger. This helps if you have a problem as service seems pretty spendy.

Electrics are the way to go!
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Organized people are just too lazy to look for things.