I forgot to mention in my initial post that one of the benefits of using my band saw for these cuts was that I could easily hook up my shop vacuum to the band saw and vacuum away most of the fiberglass dust while cutting. Always use a mask -- that fiberglass dust is nasty stuff. I agree that the Dremel tool with cutting wheel works -- especially for the curvy cuts.
David Heal - Windsor, CA (near Santa Rosa)
EAA #23982 (circa 1965) - EAA Technical Counselor and Flight Advisor; CFI - A&I
RV-12 E-LSA #120496 (SV w/ AP and ADS-B) - N124DH flying since March 2014 - 740+ hours (as of Mar 2019)!
through June 2019.