You need to plan it. If you don't and set lots of people off digging you'll end up with lots of things in the wrong place. Then you'll have to rework lots of stuff.
You need to consider drainage. If it all fills up with the first rain you will cry and the spot will be pants. Do you need to install drainage channels, do you have suitable free draining fill, do you need geotextile?
Are you going to build up, down or both?
Are you going to import, win on site or both? How much muck are you going to need and how are you going to shift it? Mech barrows and mini diggers are wonderful for this (and a good driver for the mini is a godsend).
How are you going to shift the muck? Good (or even just half good) PT's can be very fast. Big enough berms to catch riders can take a fair amount of muck.
Have you got enough tools and are they the right ones (the right tools always make a job much easier)? Do you have enough barrows?
Do you have a budget?
You have email 😉
Tim
Chairman, SingletrAction
Building a PT last night in Buck Woods and built another in Stainburn.
And like the man says, have you memorised the PT builders bible by Lee McCormack.
PS – Pump Tracks rule 😎