Sprattoo and kkevvy
nice to see ya. I've never been to Old Orchard but i can tell you a few things from your post above. First with bait: I for one have never had luck with mackeral, but have heard many that like it. I usually fish with herring and it definatly stinks more than the mack does. I usually don't fish with a weight either, just let the herring chunk float out there. 20 Lb. line should be fine, unless you catch a real good sized one.
If I was you i would say to try an ask any fisherman that you may see around what they use for bait or simply find out yourself what will work by trying a few different baits: Squid, Pogies, Herring, Mackeral, Eels and clams all work good in the right area you just need to know what that is around there. Hope it helped