I've emailed them 3-4 times with no avail... It took two and a half weeks just for them to get into the mail and then when I email them and said I didn't want it and to refund me they sent it anyways.... And now I've been trying to get a return still no email back
Tried the S3 idle knob but it wouldn’t screw in enough to work but the Beta one was seamless and easy to turn but enough resistance to not back out over time.
Very impressed and happy with the purchase!