I am presently installing the pushrods in my Venture 60, which will have a Saito 72 (four stroke) pulling it, and I would like a few opinions as to which pushrod connectors would be best to use on the servo end. I have used the GP Screw-lock connectors (where the wire from the pushrod slips thru the brass block and a screw is tightened to hold it in place) and I have used the GP threaded Ball links. I have had no problems so far with either, so far.
The Screw-lock connectors are by far the easiest to adjust, but I wonder if they aren't likely to loosen in flight. Also, should I grind a flat spot on the wire where the screw tightens down on it or is that just overkill? I have been told that a four stroke vibrates more than a two stroke, so will this be a factor?
The Threaded Ball links seem to be the strongest and surest, but are the worth they extra trouble when they have to be adjusted?
Just wondering which you guys prefer, and why.

Thanks.