Green Day Rock Band

I just nailed this achievement first time, and using quite a different method to the description above.

Firstly notice how this achievement is hit 100% and not full combo.
If you are struggling to hit 100% whilst strumming in time with the rhythm - simply overstrum (Yes, I just said overstrum) the more dificult part; (YO, Y, YB, R, RY).

You are much more likely to hit these effectively, just try not to overstrum too much as you may make your meter go into red. (EDIT: You can unlock this achievement with no-fail cheat on!)
Also I cannot emphasize enough that putting this song into practice mode and putting the speed down to 70% will help you emmensely in recognising the combo.

All else that I can say is that this is a very sloppy method, but if you are really struggling with the above then some people may find this much easier. (A good description would be a soldier machine gunning instead of sniping - sniping is for the perfectionists and machine gunning is for the people who just want to get the job done.) - just to re-iterate, this is for people who want to get the job done.

GOOD LUCK!

This one is actually quite simple,but here's a tip. The tricky part at the beginning of solo A is strummed at the same pace as the whole solo. It may look a bit confusing, but just keep a steady strum and move your fingers quickly to hit that part where it goes R YO. YO. YO Y. YB. R. RY. RY. RY etc. Also slowing it down in practice will help and don't worry about over strumming. If you break streak, keep going to make sure you did't just overstrum as you'll still get the 100%. Good luck and congrats to Lonsta da Monsta for beating me to 1st winner on TA!

This one is actually quite simple,but here's a tip. The tricky part at the beginning of solo A is strummed at the same pace as the whole solo. It may look a bit confusing, but just keep a steady strum and move your fingers quickly to hit that part where it goes R YO. YO. YO Y. YB. R. RY. RY. RY etc. Also slowing it down in practice will help and don't worry about over strumming. If you break streak, keep going to make sure you did't just overstrum as you'll still get the 100%. Good luck and congrats to Lonsta da Monsta for beating me to 1st winner on TA!

what i did for this was went into practice and practiced the entire solo, then i put on no fail and DID NOT play the song until the solo, because what was happening to me was the slowness of the song was throwing off my speed in the solo causing me to get 97-99%. the first time i did it this way, i got it!

This achievement can be really annoying and it is hard. You have to 100% the solo of "Hitchin' A Ride". What I did, was take it to practice and kept practicing the Solo until I could constantly hit it. If Super Speed helps, you can turn that on so you can have it during the actual song.

The part of the solo where you have to let go of the chord is the hardest part about it. Good thing though, is that you can over strum, so strum really quickly if you want, as long as you just don't miss the notes, you will be fine. All I can say is, practice makes perfect!