Okay, I'm not sure if everyone knows this already and I'll look like an idiot. But if you are running some sort of pedal (eg. for me my BDDI) You can still bypass the preamp section, without needing 3 leads. So instead of Bass ------>amp input effects loop send-----> BDDI --->effects loop return./ you can run Bass--->BDDI---->effects loop return. Sorry if everyone already knows this, but I thought it would be usefull.