That would work for snacks. It's best to look at every time you eat as a meal. And try to break up your calories and nutrients evenly between meals. I find that this works best. Granted, it's hard to break away from the 3 meals a day, but just try to add a little more to those snacks..even if it means taking away something from your three meals.

The max amount of fat that you can lose in a week without losing muscle mass is around 2 lbs per week. Try lowering your calories to around 300 below your maintenance calories. Make sure to keep your protein intake high though.

You are on the right track..I'm impressed. You're doing much, much better than most people.