#2
check out some of their older stuff, depending on your skill level, their riffs may be easy, but their solos you definitely need to play very slow at first (like anything), to get a grip on them. Just browse through the tabs and see what you can handle then progress. GL
#4
No worries, I feel your pain though, some of there solos are just blistering legato runs that its almost unsure of what you're doing. Id say play the riffs of a lot of the songs, then move on to the solos, im currently breaking down a lot of them and they are tough man. Great stuff though, take care