My dd has played both ECNL and DA, ECNL was nothing more than SCDSL with some playoffs thrown in. DA has provided an excellent platform and dd is now committed to a top D1 school. I do agree the sub rules were not necessary but did not result in any injuries other than skinned and bruised legs and a few ankle sprains, which happens as they get older. In the last two and half years with DA, there have not been any ACL tears and only one mild concussion on her team. By the way, DA protocol of professional brain assessment prior to the beginning of the each season was great. Having a trainer at every game was great, ACL warm up before every practice and game was good....