42 years old and first cycle

[mikesmallguns]

ready for my first cycle and looking to gain about 10 pounds of lean mass.I am 5'10 165lbs and 9% bf.have great abs ,watch diet and very disapline with wieghts and cardio.My question is I am planing to do sustonon250 only for my first time,is it possible to do a cycle and not loose that lean look.