I was really happy that you did this tune. As a listener, I know it inside and out, but never tried to play it.
I think you did a really good job with the drums and the myriad of changes throughout the song. Bass playing is pretty cool too.
The guitar has more of a high-midrange rock distortion going on as opposed to the lower-midrange, almost grunting sounds of the original. But I think you already acknowleged the difference.
Anyway, I don't really care if it sounds exactly the same as I could always listen to the original if I wanted that. It is way cool that you got the whole thing down like you have.
As for the vocals...as I think you are aware, they are pretty pitchy...flat, I think, a lot of time...which is too bad because I think your voice sounds great for this tune. Also, how did you treat the vocals? I absolutely think you nailed the sound of the processing used on the original...startling, really...please share what you did?