We were in an 18 ft not to many problems back got sore. The north channel can be real rough we had to turn around a few times. We would cruise about 20 -25 or so the boat handled like a vette so I could actually drive around some of the waves.
Wile 19ft is Ok to getaround the lake safely in, be aware that after a year or 2 you will gettwofootitis and want to upgrade. So, if you can afford it, I'd recommend at 22 - 24 ft with a nice cuddy up front to overnight in. my $0.02
#! Get someone that knows the lake take you around
#2 Take boater safety class
#3 Carry Marine Radio
#4 Look at putting in on the west side in Algonac. Much better ride in the North Channel and the Middle Channel to get to the fun spots like Muskamoot and Gull Island. That way you don't have to take an arsh kicking across the lake at the end of the day. I ran Hydrostreams out there for 12 years before I bought bigger boats and always put in over in Algonac.
Lake St. Clair is AWESOME. I originally lived in Waterford. Boating on Cass Lake with an 18'. Once I expeirianced LSC, I was hooked. Only problem was......I got the sh!T kicked out of me everytime I came out.
So, I sold the boat, the house, and moved to Harrison Twp, bought a 25'.
I changed my life completely for this lake. Even my job.
My advise: 25', no less. I am already ready for a 30'. but, 25' will get you around in most of what the lake dishes out.
Youre right. Marine radio! GPS if you can afford it. All the above.
Have a great one.