asparagus Spacing in a woodchip garden

I was wondering what spacing you use for asparagus in a woodchip garden.  

This gives three options for spacing and says the yield is the same for each one.  
https://askthefoodgeek.com/how-to-grow-asparagus-in-less-space/

I was wondering if the plants in wood chip will grow more vigorously / larger.  I have 8 acres so space is not an issue.  I also am growing some from seed, so plant cost is not an issue either.

No experience with woodchip garden, so can't say for sure.  Mine grow in the garden soil, and take up something like a square foot each.  I have space between them to allow for expansion.   Growing from seed is very slow - I have self-seeders growing and they are nowhere near a picking size after two years.  At one stage I moved the crowns from a fire-prone site to the house garden and it took three years for them to start producing the more than pencil thickness pickable stems. - that's the same as when the original crowns were planted.  It's a long-haul crop!