Losing Gains w/winny

this is my first cycle, and im on my 5th week of T-200 600mg/wk and so far i have some decent gains i went from 195 to 211lbs . but im getting a little to bulky i want to start toning up so i was going to start winny depot at wk-7 to wk-12
i wanted to know if i cut my calorie intake to about 2000 a day and my carbs to about 100grms a day and do cardio 3 times a week for 45min would i loose my gains from the Test, as of now i take in about 3500 carories a day 250-300 gms of protein and 250gms of carbs a day and also when i start the winny is it best to go high reps or should i stay doing low reps for my sets

im running
T-200 wk/1-10 (600mg/wk)
Winny Depot wk/7-12 (50mg/ed)

(i posted this before but i didnt have any replys)

Any time you seriously cut your calories below maintenance you may sacrifice some muscle mass although the AAS will help preserve more than if you were off.