If I understand the IR rules right, if you have an action that qualifies both as DPI and TGT, and the referee only announces TGT, then if the IR reverses the TGT call, you no longer have any foul. If you announce "DPI by TGT", then you still have a foul even if IR reverses the TGT part.
I don't think this is an issue in any crew that works IR games, though.
Ok, maybe I misunderstood your last post.
To my comment "If DPI happened 5 yards down field, you would decline DPI and take TGT", I thought that in your reply that you implied that unless your game had IR, you're not going to get the enforcement right.
After re-reading your post, it seems as though you meant that you would like the calling official to give you either TGT or DPI, whichever is more advantageous. I gotcha. Apologies.
Even in games without IR, I'd still like the calling official to give both. The DPI at times could be more advantageous than the TGT when you're inside the 30 because of half the distance procedures.