"I hear you about Innovate. A friend of mine wanted to buy 2 LC-1's. He asked them to make the cable longer so it would reach his dash. Innovate said no. He said eff you and bought another brand."
I'm using 2 LC-1s on my race motor. I ran 2 lines from ea. lc-1 to the gauge in the dash. You can also use 1 lc-1 on one side an a lm-1 on the other side. The lc-1 down loads into the lm-1 and you can see the graphs for both sides. I'll use that set up when I'm at the track and want to confirm the a/f.
I went through a bunch more money than I wanted to. In my case they left some info out which resulted in me buying yet more stuff, pretty annoying.
'75 Carrera RS look w/3.4 twin plug
'79 930/DP935 w/3.5 twin plug