Herringbone around island

Hi. Got a herringbone job starting. I am wondering on what you guys do when making the herringbone meet up around the island. I have done it before by dry laying it etc. but this island i have got to link it up round is the length of my vw crafter van. Cheers

 

You could try taping a straight edge down both sides, to make sure there isn't any run out

 

Dry fit up both sides making sure you keep to the line you have marked out then meet them at the top from both sides. Tape them as you go along and then you can do your tweaks section by section. I find the long islands easier for some reason

If you use a straight edge which will probably be a 4m one by sounds of it then make sure it is straight, I always check with my laser line.
The cheap straight edges ain't straight so make sure you check.

If you have 2 lasers then use them but a fine pencil line works better for me.

 

I sometimes use mdf skirts as a straight edge, i always have plenty lying around, it's usually straight and stuck down with a few bits of double sided tape, it gives me a nice thick solid edge to work to