My first cycle of var was 12 weeks at 10 mgs and I ate at maintenance or 100 cals over and gained 17 lbs, keeping probably 12-14 lbs post cycle. I was trying to gain some muscle though. I've used it in show prep, as well, but don't know if I would use it again for a cut. That comes more with trial and error and knowing my own body. Maybe a low dose like 5 mgs for a cut but honestly, I found if my diet wasn't spot on, my weight almost always went up.
Any steroid is a male hormone and the fundamental science behind it is that they are used to increase muscle mass, thus the weight gain (some water retention as well). That's why they would say eat at a surplus...that's usually the reason for using aas...building muscle. Changes in bf% come from eating at a deficit and through an increase in lean muscle mass. So for me, I gained weight but kept my diet pretty clean so my bf% still went down.
Guys will tell you (no offense to the guys here cause they're great) they use var for cutting but women respond differently and even though a lot of women would use var for cutting for a show prep, for example, many use it more for bulking, maximizing the effects of the drug. You sort of weigh out your risks and tolerance to sides and then decide when you want to use it, for the most benefit.
I think you'll see good results. You have a solid base to build from. Hope that makes a bit of sense! I get rambling on...lol
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! Legs are looking good, and your tricep pose looks good, keep it up!