Have you guys considered modifying the Coolant temp sensor with a resistor to reduce 'Cold-start fuel enrichment'?
I doubt you could get away with what I did, by skewing it so much that fuel-enrichment is non-existent, and gaining 7% overall but I'm sure you could still enjoy 'Fuel-enrichment' smoothness by adding 60F to the minimum temp you see.
I picked 60F assuming you get 0F, which means it will think its 15deg Celsius and therefore still apply enough enrichment.
The resistor in parallel works best if the Coolant temp sensor resistance drops with increasing temperature, so that even though you have altered the value at low temperatures by a lot, it only changes it by a little at the operating temperature.
I can throw up a spreadsheet if people want to have a looksie and modify it for their own use.
