This reminds me of a point I made on some other forum years ago (in relation to PAPA).
First I would like to say, that I really like the Pinburgh format and event. I recognised how brilliant the format is from the first Pinburgh. And I wish I could attend every time.
But, I believe that finishing high up in B, after a third competition day of strong performance, must be a greater achievement than finishing bottom A. However, the final ranking of the tournament as whole does not reflect this. And hence, neither the WPPR payout. And for PAPA. The latter for lower division players is zilch.
Maybe, a more fair final ranking would be to intertwined division finishes at some appropriate level. Likewise how the achievments are reflected by the prizes payed. And, in the case of PAPA, that the lower divisions were eledgible for WPPR at all.
Unfortunetly, a solution like this will encourage sandbagging even more.