I know nothing about your conditions in the North Channel. However, the wing keel suits the frequently shallow conditions of the Chesapeake, and the tall mast helps in the light winds which occur here, especially in high summer. I have both. Typically I fly my 110% in the spring and autumn, when the winds tend to be stronger, and my 150% in about July, August, September.
I find I tack through about 100 degrees, which is not particularly good. I am still pleasantly surprised how stable the boat can be when close hauled, once I get the sails set up right, she will hold her course for minutes at a time without input from me.