Gary,
Agreed, placing the antenna in the wing is a good idea. I was just trying to establish whether you had performed a solid range check first, making sure you had a solid signal before assuming a simple re-route of the antenna would solve the failsafe issue. Sounds like you had less than optimal range originally although from your post it is unclear if you had failsafe hits before or after the re-route of the antenna (or both?). I suggest you do go to the extent of your antenna down range to establish a baseline range reading and then check the percentage lost engine on, you may be surprised to find how much noise you are getting with the current placement. I usually do a "out of the box" range check on all new receivers before I install them in a new plane to get a baseline signal check. I then do an engine off installed range check, not accepting anything more than a 5% reduction in range. I then proceed to do a engine on range check, again not accepting anything more than an additional 5%. I also check the range in four quadrants. Knock on wood, this practice has performed flawlessly as I have never had a failsafe hit since I started flying PCM. On a side note, I used a Revolution whip antenna in my Kangaroo so I did not have to run the antenna out the wing, interestingly enough.....This increased my range by approx 10 paces(close to 20 in some quadrants) over my "Out of the box" check!
Regards,
Todd