I'm playing tuned down to dropped "A". Can anyone offer any guidence on what kind of rig will hold up? Can 10's handle such a low freqency reliably? I've have my 4strg set up with a five string gauge and a bartolini humbucker, will it need to be lowerd into bass to compensate for bigger string? It seems the amp is the biggest obstacle here, so that's why I chose this forum.