What type of anchor do you use in the northern Chesapeake Bay area and are you happy with the performance of it?I have a danforth type anchor with chain and rode and I am wondering if that is okay? My local chandlery has a Lewmar Delta for a decent price and I am thinking I might buy it if it is a good anchor for the area.Also, what would be the minimum amount of chain in a chain/rode combination that should be used for a 27' 7000lb sailboat? (I know more chain is better but I am wondering if there is a formula like one foot of chain for every foot of length as a minimum).Thanks in advance!Manny