Looking to firm up and cut?
Winstrol and mast and very similar as far as that hard dry look. And anavar... we all know what anavar does.
I say ditch the (injectable)winny and run mast.
You get the feel fucking awesome from mass and the fuller dryer look, without the painful pip or liver toxicity of winny.
I'm not sure what mg you run your test at.
But 300mg of mast per week and 40-50mg of anavar per day (either first or last 4 weeks)
Personally I'd do the last 4 weeks.
3000cals a day, 300g of protein, low fat low sugar diet. Cut out all liquids except for milk and water. This will help keep putting (lean) size on while shredding fat.
Or... 300mg of tren, 300mg mast and no anavar. Same diet as above.