My one biggest gripe about RRT3 while playing it. When building track. When trying to branch off an existing line, the tool that tries to help lay it out is WAY too sticky or 'snappy'. So if I'm trying to take a new line off at like a 30 degree angle, I drag away from the old line to the direction I want to go. And nothing happens. So I move further away from the old line. Finally, suddenly, it "snaps" and displays a lovely arcing curve of track leading off at like a 90 degree angle. Lovely but nothing like what I wanted. At times I've had to accept what it keeps giving me and then bulldoze it back to where it heads in the right direction.
One work around that I've done is to lay the new line on the intended approach, but STOP before it gets close enough to SNAP to the existing line. Then once that track is down, drag the connection piece from where it stopped to the old line. Usually works pretty good. BUT if the scenario has the 'all track must be connected' rule, you can't even do that!
It does not ruin the game, not THAT bad. But it does cause this operator to mutter some choice language at the screen when wrestling with it, turning the air a slight tint of blue.
Thanks for letting me vent on this....