So I'm working on building my second amp (5E3). This time I sourced all the parts myself instead of doing a hybrid of picking certain parts and relying on a mojotone kit. I ordered these for input jacks: https://www.tubesandmore.com/products/jack-switchcraft-mono-2-conductor-open-circuit I think I was supposed to order these that short out when unplugged: https://www.tubesandmore.com/products/jack-switchcraft-14-mono-2-conductor-shunt-tip Is there a way around this? Or if I use these will I have crazy hum? Thanks!