The stuff you see and hear on Drumline may seem pretty impressive to us here where drum corps is pretty much non-existent...
But if you get a chance to see the REAL stuff, i think you realise the stuff on Drumline is pretty amateur... There are DVDs available of the DCI World Championships (its not really a WORLD championship though, just a US thing), where if you catch the performances of corps such as the Blue Devils, SC Vanguard etc, your jaw will definitely drop to the floor... 1000x better than Drumline...