I didn't want to get into the details of why - but since there seems to be a press.... I fly COMBAT and experiment with new or crazy designs or whatever I can junk together - so I'd like to have some assurance the servos are not going to stick or slip or have some other malfunction.
As for my $$$ items, I fly new / excellent condition equipment: questionable devices get demoted to my 'Junk Yard Wars' bin.....