<font color=blue>Other posts on TBN recommend two 3/8" grab hooks at the two top corners of the bucket with a 3/8" slip hook in the middle. </font color=blue>
Mike,
That's my setup exactly and I couldn't be more pleased with it. I usually only use the two on the end for lifting, but I prefer having the slip hook in the middle when trying to tie something into the bucket. A few weeks ago I had some brush I was hauling and it was "springy", so I took a chain through the middle one and under the toothbar, out to the grab hooks. Having the slip hook in the middle made it easier to get the load tight.
When the contractor was putting in our driveway pipe, the guy running the tracked loader had the same hook setup on his bucket. He picked up the pipe by threading a chain through the pipe and picked it up with the slip hook. Then once it was balanced, curled his bucket back to keep it steady. I asked him about the hooks (cause I didn't have my tractor yet) and he said he liked that configuration best.
--Brad