What do the users of electronic ignitions think about their units?

Are you using dual or single with a mag?  Is everyone using Light Speed? 

The main reason to get one is to be able to advance the timing at around 7000 feet and above for more efficient engine operation.  Has anybody compared both side by side -- with electronic and without? 

When you're running an IO550 LOP at altitude, is the savings really as high as 1 GPH for the same HP?

David,

 

1.LSE - It works as advertised.  This is what I know as opposed to what I think or feel.

 

2. Dual with crank sensor.

 

3.  I am using LSE, I don't know about "everyone".

 

4. 7000 feet may not be high enough for much advance as advance is dependent on Compression Ratio, MAP and RPM.  MAP may be higher than expected for efficient ram air induction systems.  Higher CRs (> 8.7:1) may reduce the timing advance, especially at lower altitudes and high power (less than 25 DBTDC at high power).  Power is a combination of CR, MAP and RPM - lower power = greater advance = more efficient fuel usage or higher power delivery for same fuel usage.  The final answer is: Yes.

 

5. This is for someone else to answer.