Greg; .... I went to my storage barn to re-aquaint myself with my PHD
& found that mine was an L-7200 not a 7200-JR. /forums/images/graemlins/confused.gif I don't know
if that is significant or not.
My previous Post showed the PHD the only time it was used by my
B2710.
I previously used it on a TO-30 Ferguson. The
B2710 did a great job.
Since the BH is nearly always mounted on the rear of my tractor, I can't speak too confidently about what you might be doing differently with regards to the 3 PTH , except to check that your lift quadrant adjustment allows a full lift and not stopping short of the top. I also previously said that the auger was 6-8" above the ground when lifted, ...but it's more like 4-5".
Another difference that could come into play , is a taller auger than mine,(mine is 46" tall ).
I don't recall which of the two
B2710 top link holes I used, but I think the bottom one is the logical choice.
Look at the following pix to see if you can spot any difference in the model I have vs. yours. /forums/images/graemlins/smile.gif ....RayBee