On the bright side, it turns out there are only four passages more than 30 miles, and only a couple close to the 40 mile mark. Of course, this is Navionics auto-calculating the distances for me; it tends to hug contours based on your draft, doesn't allow for headlands and overfalls, etc, and certainly pays no consideration to the wind or point of sail.
That would be my job.
On the not so bright side, the worry is, as ever in these parts, contingency and boltholes.
I know the area from Plymouth to just beyond Falmouth at the Lizard as well as my own proverbial back yard, and know the ground from just after Lundy back to Portishead just as well. The rest of it is new to me. Which, of course, is part of the fun.
I don't think there is any cover between Penzance and St Ives, and once committed, turning back could be as difficult as pressing forward. Likewise, St Ives to Padstow, then Padstow to Lundy. Long legs for a little boat, and once you start them, you're pretty much committed to seeing them through. Once we get around the corner that is Land's End, we're going to want the wind in the prevailing southwest, and would like a ni8ce bit of it, but not too much.
All weather ports of refuge that we can consider in the Bristol Channel are Swansea and Cardiff. But if the weather turns foul you could have a lot of nasty water to cover to reach either of them. On the other hand, it is the Bristol Channel, so if you can just manage to stay afloat, the tide will eventually carry you to wherever it is you are trying to go.
Needless to say, we're going to be very careful with the weather. And that, much more so than any deadlines of work, band or otherwise, will determine when and where we sail, and when and where we arrive.