Does anyone here have a trailing pitot/static
or just static bomb that I could borrow?
I'd like to speed up the experiments I've been
doing to correct the static errors on my 235.

Also, if anyone has suggestions on how to trail and
retract the device, I'm open to suggestions.
I think I have a workable method, but there may
be a better way.

Bob,

 

Borrow a decent GPS (Garmin ?96, ?30, etc.) and use any one of the many methods (2,3 or 4 legs) to calibrate the true airspeed.  Use that (with some calculations if you don't have an electronic airspeed calculator aboard) to correct the IAS.  Thus, you can avoid all the, uh, limitations of old methods.