Spend the extra couple bucks and get the DLE.
I've got two (likely another one this year too) and they run like swiss watches.
great customer support as well. I was THIS close (my fingers are really really close together... ) to pulling the trigger on the AGM,
decided against it and within a week people (with accurate measuring equipment) started complaining about the tolerances being out,
rough running engines (or not wanting to start at all) etc.