I've been recently doing some core stretches and light weight work to try and improve my running. I do this about three times a week and i work my core and also do some bicep curls, push ups and a number of crunches. I am starting to get some results, I have beaten my last two PBS and I feel a lot healthier, but now I'm interested in maybe incorporating some yoga into my routine. What do you guys recommend? Should the yoga replace the core work and weights? Or should I do this on days when I'm not core and weight training. The yoga I'm interested in doing is DDP yoga as I've heard nothing but good things about it. Thank you for any advice you have!