Remember , test and equip belong to the same family of tesrosferone, so you get test equip dbol and they are all in that family. Then 19nors such as deca/npp, tren and ment. And then you get the dht family, which is anavar, masteron, winstrol, anavar and anadrol.
You would be better off running test with a 19nor or a dht, and yes you can make gains in the offseason running masteron, it causes a lot of neurological drive and aggression towards lifting weights. I personally love 250mg test and 200mg primo these days for growth and then push the dose up later on 6 weeks into the cycle or add another compound..
And that being said I would go test e over super test. Super Test used to hurt like shit.