I haven't used a DL50 so I won't comment on it.

I can say the 3MM/TOC53 is a super engine. I've used about 2 gallons in it. It starts easier than any of my top 3 brand name engines. It has more power than two and matches the other. It throttles up and transitions better than all three. The vibration level is lower than all three.

Tough to beat for about $400.....