Hurley, we have been doing very good in Lake Michigan out of Central-Western Michigan.
Without weight it is very difficult. you may let out 60 foot of line, but if you troll, even very slowly, your bait will raise a large amount. Fishing if fishing though, so anything is worth a try to wet a line.
A tip for you may be to use LEADCORE. Google this and read up on it. It is fishing line with a leadcore center and ever 10 yards it changes to a different color. I believe every 10 yards of line you release, that depth increases by 5 feet or something. For example, if you let 100 yards of line out, you are fishing 50 foot.
Just research the information for better results.