I have done it either way: master each formatindividually or done the CD mastering first and then cut from that master. Cutting from the CD master gives me the closest match between formats.
Mono-ing the bass is very important for vinyl, not an issue for CD. I do not filter above about 20Hz usually, so lows are OK. Ultra high frequency is very tough to cut, so watch out for the ultrasonics. Boy, is it a mess to blow a cutter head!!
Don Grossinger
www.dongrossinger.com
914-548-0950