I have a TY37 Mk II with curved cockpit coming, davit tubes and reinforcing strut bolted through the outside of the coming. The dinghy was a Caribe, 10.4 Ft, around 140 Lb weight, hung from standard TY 37 davits. The previous owner mentioned that at steep angles it would veer sideways and the dinghy tip into the waves, so they pulled it up all the way till the sheaves of the davits with cross springs against the stern pulpit. 

I found the davits a little "springy" and modified the strut braces by cutting the curved tube brace to the main tube base plate off  (original pic 1) and extended them to the hull to provide more stability (pic 2) At the same time increased the height of the davits about 10 Inches by increasing the length 14 inches. That length would make the davits more "springy" yet, so therefore, besides bolting to the hull, I spread the struts apart so they provide more lateral stability See picture 4). That way I can also carry the weight increase from a large solar panel. While doing that, I doubled up the thickness and weld of the plate braces to the pulpit Pic 3). Meanwhile the dinghy has been "borrowed" and I replaced it with an 8-1/2 fr single bottom Caribe which is significant lighter and shorter to be single handed.

Picture 4 and 5) also show the stern platform addition which allows me to walk around the Cap Horn steering vane mast and cut fish outside the cockpit. The stern rail is modified to go around the stern platform.

Hans Kosten
Starlight Dancer, TY 37 Ketch