Hi Bob, sorry to hear about your eye prob', but glad to hear you're flying again. My flying buddies here in the UK are using dl50 and dle55, and they think they are great! I have a dl50 in a World Models Extra 300, and I love it. Once it's fired on choke, it starts after about 3 flicks.
Also I have a dle55 with a can in a Hanger 9 Carden Yak 54 which is almost completed, if my dl50 is anything to go by, I'm confident the dle55 will run and fly great too.

Enjoy.
Best of luck bud.