Why wouldnt you swim with it?The owners manual saus you can. I have tested the two speedys ive had for waterresistance and both were more stable at a long 10atm test than my planet ocean. The one i have now havent had anything dine with it other than a movement service sinne 2003 and still passed the test last week.
Did you actually wear your Speedy Pro underwater at 10atm? I was under the impression, granted I haven't looked at them in a long time, but that they were only pressure proof to 3 atm.