A Case for Strong Jump Shifts

We played two over one and we missed the grand on this deal after using Jacoby 2NT.  Look forward to your comments.  Thanks in advance. North ♠ 62 ♥ AJ9872 ♦ AK3 ♣ K7 South ♠ AKJ1087 ♥ KQ64 ♦- ♣ A84 Assuming North opened: Playing strong jump shifts (which is what...