Hello all.....new to forum and seeking help. I have a Shaver HD8 post driver being used to set 4x4x8 posts in very sandy soil (Washington County, Texas). What are the tricks to driving a post in straight? I've tried leveling the driving ram alone, leveling the post alone, and leveling the post and the ram. I've tried just tapping the post in a few inches to set it in place before dropping the full weight. The post starts out good but invariably ends up skewing away from the driver at the top. There is a safety arm on this unit which, in my opinion, puts too much inward pressure on the post too low. But I talked to Shaver and it is properly located. I've also tried tapping it in a few inches BEFORE setting the safety arm and it didn't work any better. I've also tried centering the post in the driver channel as well as keeping it flush against one wall. And I've tried tilting the top of the driver out (away from tractor) a tad at Shaver's suggestion. None of this is working satisfactorily. All advice/comments on using this equipment would be appreciated!