I have Koni Yellow inserts on my 2007 WRX wagon with wagon sti pink springs. For the past few years, about every year, I need to turn my konis about a quarter turn firmer to maintain the ride I'm looking for. If I don't the car starts feeling a bit disconnected and bouncy and isn't as fun to drive, but after the turn, everything seems to go back to normal. I've read that this is not uncommon for Koni yellows, but it still seems strange to me. The shocks aren't failing, but something much be wearing or changing, that makes the shock a bit weak. Then that problem is mitigated by firming up the shock. Does anyone know what's going on inside the damper?