I'm 36 year old male. I'm 5'9' and weigh 155 lbs. I have been bodybuilding for about a year. I want to compete in my first show next june. I've been doing a power lifting program for the last 12 weeks and have had some good gains. I want to gain alot more mass by next June. My question is this: since I have some fat in the mid section that I would like to lose right now, would it be counter-productive to my mass building to cut for 10-to 12 weeks and then go back to building?