Re: Closer to the wind question
Lots of variable things going on in your scenario, so it's hard to pinpoint any one thing. First off, for pointing higher under just the main. This may be because you slowed down when you rolled up the genoa. You don't mention your actual boatspeed anywhere in your post. Slowing down will bring the apparent wind aft - creating a lift for yourself. It could also be because your main is cut flatter than your jib. Since you're traveling up a channel, in current, there could also be things going on with that which might enable you to head higher (or lower). All in all, you sail with what you've got or start the engine, as you say you did.