I thought an expert would chime in by now. as for the plastic adjustment screw, you may end up drilling it out. I believe I've seen a thread about that.
As for adjusting the tiller connector, you want the leading edge off the rudder and trailing edge to be about the same. That's were you would take your measurements at.
Make sure you have the rudders on the correct sides before you start.
There is a good you tube video on rudder adjustments.
83 Hobie 14 Carumba
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