RE: DA / DL observation
The problem DA face over the DL and DLE is power, the DA are just not that powerful, I do not own a 60 and perhaps it is an ok power'd engine but no matter how you want to sugar coat it every 88/89 inch plane that I have flown with the DA is a dog when compared to a DLE 55 or even a DL. Money is not the object for me but power is, my DA powered planes gather dust in the basement because they are just not as fun to fly as my DLE and 3W powered planes.
Perhaps when I need an engine upgrade I might go with a DA60 and this hopefully alleviates any power issues.