B4 Wheel and Tyre Options?

[Shorty]

Hello,

What are my wheel options for a B4.1?

Any advantage between the solid disc wheels and a spoked wheel? Or is it just all about style points?!

Looks like I might want to be on Schumacher Mini Pins, yellow compound front and rear for carpet, after reading posts on here.

Not sure what my local outdoor track surface will be, it's still being built! But some kind of Scottish muck!

Will my Mini Pins do there too, or will I be needing something more spiky?