https://community.usms.org/swimming/f/general/10948/how-to-improve-sdkI really would like to get some tips on how to make better SDK&#39;s. On the back I think I have an average effective SDK, but in freestyle underwater I feel I have no forward propulsion from them, so I rapidly come to surface and swim again.en-USTelligent Community 12https://community.usms.org/thread/180212?ContentTypeID=1Tue, 09 Oct 2012 10:54:34 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:d285f611-e162-42eb-8434-530a51d66607Former MemberThanks Allen, all the info I need.<div style="clear:both;"></div>https://community.usms.org/thread/180301?ContentTypeID=1Tue, 09 Oct 2012 03:40:14 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:4d18765e-5fcc-40c5-bc47-47a173d71e12andeI really would like to get some tips on how to make better SDK&#39;s. On the back I think I have an average effective SDK, but in freestyle underwater I feel I have no forward propulsion from them, so I rapidly come to surface and swim again. Why Not Improve your SDK Help my SDK is Horrible 1) Test your SDK speed (have someone time you) a. FROM A FLIP TURN: 15 &amp; 25 b. From a forward dive: 15 &amp; 25 c. From a backstroke start: 15 &amp; 25 (if you do backstroke) 2) Train to improve your SDK Do AFAP SDK&#39;s with plenty of rest Perfect your technique Improve your foot ankle flexibility Improve your legstrength 3) RETEST Retest ReTest 4) As you improve, determine your SDK speed vs swimming speed and decide on kick count strategies for your key races<div style="clear:both;"></div>https://community.usms.org/thread/180189?ContentTypeID=1Mon, 08 Oct 2012 07:02:07 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:fa913951-38b2-45b5-9239-4f2faa128bfdAllen StarkCheck out forums.usms.org/showthread.php<div style="clear:both;"></div>