qmd stroke testers lets hear your opinions

I was one of the beta testers for this device. It works as advertised and you get immediate feedback on your stroke. You get 3 graphs of your stroke (as seen from above, side and from the butt end). Just so this isn't confusing, these aren't videos, they are the recreation of the strokes path. When I first started using the device, I saw I had a slight pull to the inside near the end of my backstroke which translated to an equal and opposite effect near the end of my stroke. I couldn't see this with a regular video camera. I was able to correct this and could see immediate improvement with the straight stroke drill.
 
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