I will be purchasing my first punching bag soon. I am a mixed martial artist. My weight is 152 and i fight at 135 5' 8". I was wondering what type of heavy bag to get, either just a standard bag or a water filled like the powair/hydrocore. And what weight of bag I should get as well. Any information would help a great deal, and since I am not strictly boxing this bag will be used to kick at as well.