I have always struggled with tuning my carb and was thinking a wide band air/fuel meter might help me out a bit? I am thinking either the LM-1 or the FAST with (1) sensor. I want to keep the cost down and figure I can weld an extra bung on the other side and swap the sensor if needed. Can anyone recommend one over the other? I read the LM-1 info can be downloaded onto a computer which sounds like a nice feature.