Hello, all. I'm one of the guys that posts walls of text to answer questions on string gauge in the standard/7/extended range/bass sections of the forum, thanks to being too comfortable with and quite addicted to Ishan's handy downloadable string gauge calculator. I've been quite satisfied with the sets that I've been able to put on most of my guitars for a wide range of tunings and playing styles. However, it turns out that i don't know from a rat's patootie when it comes to alternate gauges for classical guitar strings or even where to source them . I would like help with finding good gauges for E4 A3 D3 G2 C2 F1 for my 650 mm scale length classical. It's been fun trying A3 D3 G2 C2 on the bottom four strings of that guitar, since it is the same as a cello, so i'd like to go a step further extend a 5th lower and a 5th higher, instead of having a weird hybrid guitar top/cello bottom. Thank you for your help!