4wanderingeyes
5 year old buck +
My trees get about 4-6 hours of good sun a day, and they are doing good, I am sure yours will be fine.
I've never been a linear fan in general whenever possible. Nature to my knowledge never without human intrusion does anything in lines. I do clusters personally but what you outlined I see nothing wrong with it, they should get enough light.
Any thoughts on a slight zig zag instead of right down a line?
A note on Wickson Crab. I am in SE Michigan zone 5b. My Wickson's ripened (totally dark seeds) on Sept. 12th this year. I basically pick a couple every day and in the days leading up to the 12th there was always some white left on the seeds. They are hard and tart and will only soften and sweeten from here on out. And the focus on sweeten as the juice can be 25% sugar in a good year.