This may sound obviuous but always keep the load as close to the ground as possible when moving a heavy load. If you do need to lift it keep in mind for every inch it goes up the payload weight must go down. Adding forks accelerates the load derating. There are ways to compensate as many of the guys have mentioned but with those, how much counter weight is enough before reaching other limitations? It is all a balance, sort of a see-saw actually.
Another technique you may be able to use is to not completely lift the load off the ground but enough so you can scoot it to where you want it.
I run bucket forks on my tractor most of the time. There are good things and bad things about the forks.
Good:
* They can hold the load in one place, and on top of the bucket rather than dangling below (which can throw the balance off if the load swings to the side).
* Good solid tie down places.
* Increases area available to load.
Bad:
* The forks when attached to the bucket are about 2' further out than if I had a fork carrier, pushing the load further forward, and putting more leverage on the front wheels.
* The forks (old forklift forks) are massively heavy. So I probably lose 400 lbs or so of weight capacity just with the forks.
* Mine are fixed location. I put them narrow to carry a tree, but wider would have been better for many things.
* And the forks allow me to add weight 3 feet or so in front of the bucket, further pushing the balance point further.
Overall, I like having the forks. Rear
ballast helps a lot. I don't think they negatively impact hill performance. However, I've mentioned before that I've added front axle stops to keep the front axle from rolling to the side with the bucket filled.
So, having the bucket cause the front axle to roll on a hillside could mean dire consequences.