I have 3 46"s and 1 .61 Evolution. All basically trublefree. I have had the HS needle virbrate when the "clicker" got a little slack. Re-bent the clicker and pushed a pc. of gasline over the needle and "clicker". No more problems. I did remove the limiter on the HS needle. Just a little pin. I pulled them out with needle nose pliers. Never have to mess with
the low end after initial adjustments. Tweak the HS on occasion as temp and humidity changes. All run great.