LucyDuke
staring at the clock
I always f**k-up pre-chopping by forgetting to tell my worker to stop chopping, meaning that I end up chopping hammers for something that I don't really want (or at least don't want to build quickly). Must be about 80% of my "pre-chops" end up as actual chops through forgetfulness and stupidity!
Chop, cancel in the same turn. Your worker will chop one turn's worth, then ask for an order next turn. This way you have to tell him to chop every turn, but you can't forget about him and finish the chopping by mistake.
You know i've got to say that i never chop. I like the health onus, and the fact that you can build lumbermills in those cities. Plus you get that extra hammer of production the entire game, and not just 90 or whatever to build the oracle. I only play on noble so far, so maybe it is more useful in the higher levels, but I just can't do it.
One of the overlooked benefits of chopping: When there's a forest immediately adjacent to your city, an attacking enemy will usually put his troops there. That's a 50% defense bonus, which may well be better than the bonus you get from your city! If the enemy is sitting in the forest, your counterattacks are substantially weakened. This doesn't say anything about chopping in the outer circle around the city, but I'll never leave a forest adjacent to my city. Especially not a forest on a hill!