So I just installed the classic 4-way switch mod on my CV50s. I seemed to have run into a strange issue though. The 4th position (neck/bridge series) doesn't always switch on when the switch is placed into the 4th position. I've done my best to debug everything and have concluded that it is not a soldering issue. What does reproducibly happen is that the 4th position will always successfully switch on if I give the switch a reasonably firm shove into the 4th position. If I just kinda gently slide it from 3rd to 4th position, the 4th position doesn't always get activated, and instead all I get is the neck pickup (and it sounds the exact same as position 3). In this case, if I give the switch a firm press upward, it can correct itself from the failed attempt and successfully make the 4th position sound. FYI, I am using the standard Fender 4-way tele switch. Anybody have any input on this? Is the switch defective somehow? Can I fix it possibly? It seems to me that if it's just one of the contact points that is inconsistent, that could be fixed relatively easily, but idk what's going on at this point.