Looking for advice on some GK cabs...I play mostly metal and thrash. I'll be buying a 1001RB II, and also have a line on some used GK cabs: the 410 RBS and the 115 RBH. Is there anything I should be aware of here? Is this a good combination? Any red flags? Do I have to use GK speakon cables, or will any speakon cables do? Thanks in advance for the advice!