[quote name='phatmonkey' post='245367' date='Jul 22 2008, 02:05 PM']I have done the Rock School grade 8, and I know a guitarist who has done an RGT grade 8. The Rock School syllabus is one hell of a lot easier - there were dozens of scales/arpeggios for RGT, I think I only had to learn four. It's just a matter of learning the songs, which takes time. I have been playing for 6/7ish years and managed to do the grade 8 in about 6 months.
I'd suggest you get a copy of the book and see if you can learn any of the songs. If it's too hard, try a lower grade.[/quote]
i have been playing for about 4 years, and i'm hoping to do my rock school grade 8 at Christmas. the exams are fairly easy, as there is a long time to prepare the sightreading (20 minutes) and not very many scales (compared with some other instruments anyway!)
but as mentioned before, the scales are unusual, and can be hard to learn, but as there are not that many, you should be fine!