I'm at waist length,and I'm going for hip bone when stetched other than that,I don't think I could handle much more than that.Then,again I don't think I could ever cut my hair again,I made that mistake back in 1997 when it was at waist length and I cut it up to a short bob.It's totally up to your preference though.
3B-3C, alittle past tailbone length,age:41 years