I have a 1991 Sweetwater 18' pontoon. The person I purchased it from completely rebuilt it from floor up. Of course I just noticed it does not have a Coast Guard sticker. I am planning a day on the lake with 2 large adults , 2 normal adults and one light teenager. My experience is with 21' and I was wondering if anyone has a 18 ft sweetwater Fisherman and knows the limits. I have asked Godfry but its a week end . Trip is not til 10 July. Thanks for any help