The guitar player for my band is on a kick where he detunes his les paul to standard D, and then he drops the low D down to a C. I can manage ok on my 6 year old Carvin with the standard D, but the E string gets really floppy when I drop it down to C. Right now I have it strung with a high C string. My question is, is it ok to put the low B string on the bass and tune it up to C, or do I have to get it specially set up to do so? Also, what about tuning all the subsequent strings up to match the standard D tuning, i.e. my E-string tuned to G to match his A-string, my A-string tuned to C to match his D-string, and so on. Would this put too much tension on the neck, or is it acceptable to do this? p.s. we're not just some chug-a-chug metal band detuning as far as we can, our vocalist has a deep singing voice and the detuning sounds really good with it. Thanks for your time.