I've had this tc for about 4 years, but since I had no lenses that would auto focus on my 7D with the tc, it has remained largely unused. Taping the pins did not help. When I purchased the 500 F4 II, I thought I'd give it another try. It still did not work properly, so I sent it to Canon. Since I got it back, I have not had a month or so ago, I have not had a chance to give it a work out, so this morning I went looking for some migrating boids. I found some Ringnecks in the same lake as last year, but they were skittish, and since I had no food, I couldn't get them as close as I'd like, but that did not stop me from shooting.
BTW - the tc seems to work, but reports the F stop as "0.0", and it switches between "AI Servo" and " Manual" by itself...
The shots look great Ron, that part seems to be functioning quite well. The exif reports 700 so the camera has it figured out. That said it is somewhat disturbing that you the 0.0. It seems that Canon didn't fix all the way I don't want to rain on your parade but I'm not sure I would trust the tc
IQ looks good on these Ron... did you have any images that were OOF? If so, you may need more testing or return TC to Canon.
Mr. and Mrs. both look good, and so does the Gull... such pretty light on the Mrs.