Hi Kinzi,
Thanks for the reply 
I haven't cut any traces at all - I made up your PCB with JLCPCB and put it together. I put the 6561 into your PCB and put the PCB in the 6561 socket on the motherboard.
If I change the jumper and connect a comp video cable to the Vic-20 output, I get a standard composite Vic-20 picture (The Vic-20 does boot fine). If I put the jumper towards the outside of the board, I get a clearer picture that's a bit washed out but it goes on and off like my TV can't sync properly. If I connect the 2 RCA cables to YP/CR and Lum on my component in, I get sync but no picture..
The RCA jacks are connected to an 8 pin DIN (I changed the socket for a C64 with 8 pins, cut off the 3 pins your suggested and connected the output of your PCB to one of the unused pins).
Thanks,
KbJ