Me and my friends are trying to see who can get the furthest on the battle subway with the best record. So far i have finished both the single, double and multi train with my team with only being beaten once. Ive been using the same pokemon but I am having trouble with the super trains. Do i need to fix or change them. Also I will only be using pokemon found on the Black game as I have very limited access to other games and systems.

Ive been using the same three pokemon the single and double trains.

Tyranitar - Careful - Choice Scarf or Focus Sash - 252 Hp, 76 Atk, 180 Spd
Earthquake
Brick Break or Stealth Rock
Crunch
Stone Edge

Slowbro - Quiet - Sitrus Berry - 244 Hp, 156 SpAtk, 108 SpDef
Scald
Psychic
Slack off
Trick room - somtimes switched with Light Screen

Chandelure - Modest - Life Orb - 72 Hp, 252 SpAtk, 184 Spd
Substitute
Flamethrower
Shadow Ball
Pain Split

I use these three pokemon only for the single train and use my Metagross on the double train. I would mix and match when on the multi train.

Metagross - Adamant - Leftovers - 252 Hp, 252 Atk, 4 Def
Meteor Mash
Hammer Arm
Bullet Punch
Explosion

I also have a Snorlax that i have just finished training but hvnt used him yet.

Snorlax - Careful - Chestro Berry - 188 Hp, 104 Def, 216 SpDef
Return
Rest
Curse
Wild Charge (cant get fire punch)