Hypothetically, as long as it is in the loading zone…
Read SG7 part d.
Clearly states.
I think it should be flat, but I’m not sure. Check the manual.
very helpful
I know. Very helpful indeed.
This is answered in the official Q&A. Rather than just give an answer I would encourage teams to review the Q&A every so often to see if an answer to a question lies there. The link to Q&A is below. Pertinent entries would include 3177, 3184, and 3198, as well as the most current version of the Game Manual, which includes the changelog and brief summary of what changes have occurred.
Rule SG7(b) states that the beanbag cannot be contacting the top of the field parameter, as that is not inside the load zone.
In simpler terms, your answer is no, that is not legal.