If you want to slow a I/O down for trolling you have to drag buckets or a sea parachute. I/O will/can not troll as slow as a outbd.
Dragging the buckets will cause you to put more wheel in it to make a turn. Everything is relative.
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Tis better to be quiet and thought a fool than open your mouth and prove it!!
1991 V-20 cuddy I/O 350 volvo duo prop, 1998 15ft Grumman 9.9 Johnson 
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