Just dragging the whole tree to the sell point seems like the quickest way. Ive done comparisons and you get the same amount for a whole de-branched tree as you do if its cut into 5m sections. One of my strategies is to buy the Saw Mill (and the adjacent plot), so you can drag logs right up to the sell point's lot by the flag pole, cut them there and push them into the sell point.
The Log Fork Duo is a nice mod for making logging more realistic and Ive even used straps IRL with similar equipment to steady it. I used the auto-loader and it definitely messed things up financially I was making $1M every 15 minutes. Once they do fix logging they will probably lower what they are worth to sell, to balance it out. The profit for a truck load of logs is way higher than anything else and I think its because its so hard to fill a Timber Runner - let alone make nice neat 5mx2 stacks of logs in it, like you see screen shots. I have this hunch that they left the log forks and log physics botched.
