Guitar Hero and Hand Cramps

So..... I was thinkin about pickin up this game and buyin a DS and the whole shibang. But I tried it out and was utterly disapointed as a long time GH fan. So I pop in the game and was impressed with the guitar grip thing at first. Like "how cool is this!" But after putting the difficult on expert and playin a song I found that my hand just wasn't comfortable. My pinky was almost useless. My hand started to cramp upm like all my hand muscles were all in a knot. I was confused that I was missing notes. Fast strumming was difficult as **** because there was no feed back at all. I was annoyed. And I can understand that the DS can't handle PSP graphics, but the fret board and all looked like a flatly, undetailed, dark, odd looking, scrolling piece of paper. For some reason there was this lag I never really got over. The audio I have to say was impressive coming from a DS. That I have to say was the only up part. Anyway, I was having some fun with the Ozzy song somehow, but come to find out there is only like 25 songs in the game. I then gave up trying to like this game. Seriously? Only 25? Guitar Hero fans looking for some portable version of guitar hero, go try the mobile phone version before this, seriously. Just spend 5 bucks and do it. Don't spend an arm and a leg over this DS version.