Test/Tren/Mast is the ultimate "Holy Trinity" for a recomp, but the ratios are what make or break the cycle.
If you want to stay dry and grainy without the Tren side effects crushing your soul, try keeping the Masteron dose equal to or slightly higher than the Tren. For example, 300mg Mast / 200mg Tren. Masteron acts as a great anti-estrogen and somehow seems to "smooth out" the neurological edge that Trenbolone has for a lot of guys.
Also, since you're recomping, pay close attention to your carb timing. Tren is a nutrient-partitioning beast; if you time your highest carb meals around your workout, you'll see your muscles stay full while the fat just melts away. Watch your night sweats and stay hydrated!