RE: DA50-is it worth the extra $$$
I have a DA50 and love it. Some of my friends have purchased other Chinese motors and have had reliability issues. Others swear by the super cheap imports. I don't know anything about the DL engines but I know I like my DA.
So far in this hobby (15+ years) I have never been sorry that I paid too much.
Considering the number of flights that you can put on a DA, spending an extra $200 is a small amount. Especially since you can sell it used for the cost of a new import.
Again, I have had zero experience with a DL and don't know anyone who has that brand so take my opinion for what its worth.
Rob