Re: Pros and Cons of Video
I doubt that you can really find anything detrimental in regards to videoing you or another during keiko or randori. What is detrimental is that one would circumvent the physicallity of keiko for the instruction by tape or dvd.
We have been videoing all aspects of our training for decades, yet, after all is said and done, the review of the video yields more focused keiko.
What the video will provide is greater advancement in your keiko and randori. You will be able to see when your timing/speed/distance/center is not synchronized. Aikido is a feeling art, if you are "out of touch" with uke, then your technique is flawed. Video does not lie.