Yeah just like s7ikan said you didn't need your leg to be extended you gotta stay more relaxed. Especially if your going to try running more realistically I know in like the YouTube tutorial it tells you to hold all parts that you aren't using and that's fine for just running but if you want to run and spar you must learn to relax some body parts. Try experimenting with it. O yeah Do NOT use running.tbm use classic mode at these settings Sparring Tut the -30 grav is the generally used gravity so use that.