i had problems this weekend with missing downshifts while climbing sand dunes. i kept hitting a spot between gears, like nuetral but it was between 2nd and 3rd. and also sometimes my tranny gets stuck in 3rd or 4th and won't upshift. is all of this just because i'm not shifting hard enough, like i'm just giving it enough to get into the next gear but not far enough to let it shift the next time i try?