They are going to destroy your bucket!!!
I have the clamp on forks, and then I bought the Titan pallet forks attachment. The pallet forks are very heavy duty. I am not sure, but I think I bought the lower-rated pair. I don't think you could ever cause them to fail. The only problem with them is that since they clamp on your bucket, the load is 18"-24" farther forward than with regular forks. I had a cutting edge on my bucket, and there was no damage at all. The Titan pallet fork attachment is very good, too. The problem I had was that the Bobtach on my machine (and I think most if not all), does not tilt back beyond the vertical. So, if you have a load on the forks, and want to head down a slope, you have to back down or risk having the load slide off. Even if the pallet doesn't slide, whatever is on the pallet can slide. If it's not shrink-wrapped or secured, it might fall off. Titan sells the forks by themselves. I got an extra set, and had the shop cut the forks off and weld them back at an acute angle. Works great, and allows me to tilt the load back on the pallets.