ok.. if you think that's what i mean by squirrelly, then think more chimpmonky. We had 3 100+ holes at our ace race.. 2 were just shy of 200 feet. I would throw my Pro-d on a laser line straight at the basket and low. it would hold that line until the last 20 feet of flight, which is when the disc would decide to turn slight left or fade slightly right and miss the basket... so darn random with zero external forces that ChrisHysell dubbed the disc's name "The Repeller" (opposite of magnet). Because no matter what kind of line the disc was on, the last 20 feet of flight were random.
I think this is what I was seeing last night. Guy I was playing with did pretty good half the time with it...the rest of the time, it dropped either way about 20-30 feet from its final resting place. Its definitely a strange one. I think the cause can be discovered...but its gonna take a while.