Underwater Kicking with Ankle Weights

I had some company while swimming a CW practice at U of M today.  My friend Hulmey proposed that we try some ankle weights on the second round of our kick set.  I was up for trying it but knew it would be tough.  We strung some surgical tubing across the short course pool at 12.5 yards.  We used the cord to make it a requirement to swim half of the set underwater, surfacing only after we had passed the tubing.  It was a great training idea I had forgotten about since my college days.

2 x (round 1 no equipment, round 2 fins with 3lb ankle weights)

1 x 50y Brown pace (half underwater) @ :40
100y Brown pace @ 1:30
2 x 50y Brown pace (half underwater) @ :45
100y Brown pace @ 1:40
3 x 50y Brown pace (half underwater) @ :50
100y Brown pace @ 1:50
4 x 50y Brown pace (half underwater) @ :55
100y Brown pace @ 2:00
5 x 50y Brown pace (half underwater) @ 1:00

As expected the ankle weights were ROUGH.  However, it was an awesome set!  Some of the most challenging underwater kicking I've done!