The player in the "Slash" role with G'n'R is the great and weird Ron Thal, who actually does a good job.
I was going to mention Ron Thal but wasn't sure if he was just in G&R for the last tour, or a permant member
If he would quit using those bloody Line 6 amps he would get a better tone IMHO
I do like the bumblefoot stuff though and the line 6 copes well enough for his schitzo styles, but for GnR !