Alert: This is not a techno-talk reply.
I know the dissemination of technical info is the lifeblood of this forum. But, because of Spectra lines, I'm having such an adventure with a good 'ole low tech CG Buster/Fox 35 that I had to put it on here.
This was going to be the summer of flying Dave Slagle's Bippi RC biplane after struggling for two years with its Saito 30 gas engine. I'd love to tell you all about it, but, suffice it to say there's a topic on RC Groups that goes back to 2009(!!) dedicated to problems with this engine. So, problem now solved (replaced the carb), weather, home repairs, weather, grandson's broken elbow, weather etc. got in the way.
Also, (taking more of my time), we've been instructing full scale aviation students from the University of Maine on flying RC and gave a C/L demo with the Buster. To assure all went well, I used Spectra for the first time on this model and the difference in performance was astounding. I flew the Old Time Pattern with AMA 'eights' and square maneuvers thrown in with no problem.
I did tweak the stock Buster with tank plumbing, needle valve replacement, tank position, and sealed hinge line. I'm using yellow 65# test x 62'9" lines. It's so reliable and steady that it's turned this year into the summer of flying the pattern with a Carl Goldberg Buster, all because of Spectra.
Ara