Only slight weakness i see is possibly to opposing Salamences running a Dragon Dance LO variant with DD/EQ/Dragon Claw/Fire Blast;
which is countered by Heatran, but if Heatran has already suicided you're in trouble.
EQ vs Heatran without Shuca after one DD: Damage: 127.86% - 150.46%
With Shuca that means it wouldnt OHKO, but everything else is ohko-d. the Dragons would fall to Dclaw, and steels would fall to Fire Blast. You could do some damage with Bullet Punch, but i'm sure it wouldn't OHKO the Salamence. You could stall somehow, and wait till LO damage brought it down into a range for Bullet Punch to KO, but that would be kind of risky. Anyway-great team, i can see why you topped the ladder with it.
Mains (ATM): R.O.B., Falco
Alts: Link, Tink
If you ask me for my FC, and i know/trust you we can brawl.