I do believe you will lose some muscle and perhaps some strength when you get off , what leads me to believe this is your current stats, post pics and maybe we can see better. At 6-7% bodyfat and 196 5'9 that's very very good, and beyond genetic potential . there's quite a few of the genetic potential calculators you can search for easly ,that are VERY VERY accurate and pretty much haven't been disproven, unless you have better genetics then Reg Park, Steeve Reeves , John Grimek , etc.