Just got done cutting another 25 yards of trail only to discover that I veered off 7 degrees because I was using the wrong "big tree" as my sight line. So there went a whole day of wasted work effort and a bunch of senseless tree murder. The GPS we have is great for determining if the trail you're on is going in the right direction, but not so great for determining which way you need to head to make a trail to get where you want to go. We either need to upgrade to the better model, or invest in a good laser transit (I'm opting for the laser transit because it'll help with the building site and construction as well).
The forest is dense enough that you can't see more than 20 feet in front of you in most places and the trees are tall enough that it's easy to lose your landmarks. Things would be so much easier if we could tie a big shiny helium balloon to our center marker on 100' of line so that we could see it from everywhere (or at least if you backed up a little). For now, we'll just have to deal with a slightly meandering trail and come back later during clean up and straighten out the edges when we widen it for the truck.
Days like these I can totally understand people who decide to simply drive a bulldozer through the forest to cut in driveways. If I wasn't trying to save building logs and topsoil I'd be tempted to do it myself!