hahaha.
After about the second day, I didn't get off to position my grapple manually for about 2.5 years, then I did once, one day.
Here's a trick for you...
High idle
grapple open
uncurled
Lurch forward, quickly close grapple around near-vertical/ semi-vertical log (hung tree, rigged-down piece), pick up and drive backward, like a boss. I've picked up some good-sized dead trees relative to the loader size that were failed into another tree that would previously been 'walked down' in short pieces. The support tree still holds some weight of the failed tree.
The Vermeer grapple has the ability to grab pieces this way. IDK how that works. IDK if it can go from rigid to floppy under load. I don't think you can, so you can't drive way with a whole tree with a vermeer grapple. I think it will try to stay upright, only.
Someone correct me if I'm wrong, please.
Grab and pick-up a big log at one end, that is too big to pick-up entirely. Put a fulcrum log under the big log, you can now pivot the log on this fulcrum (I've used a stump before) moving it sideways. Sometimes you just need to move the log into the clear, then roll the log. I do a little bump maneuver with the grapple uncurled 90*, tines dragging or Carefully grabbing the heel plate. The portion that is horizontal when upright is smooth, so when vertical it can bump a log without grabbing it, like the heel plate would. If you need, you can use the pushing spikes to help roll the logs, but I usually end up catching them, disadvantageously, at some point stalling the log, but that's ok.
I've rolled big logs that way on flat lawn, maybe 3 times the weight of what I could pick-up on at one end.