Bingo, with the earlies being proportional and the later primaries winner-take-all, it will be a late-decided contest, which was the idea when they made this re-do of the system 2 years ago. Too many "late states" had no say, and it just didn't seem fair. With the crowded field, those early "proportional states" have even less significance. Trumpers , even if they win, are going to get mighty impatient watching their delegate numbers go up so slowly.
Actually, there are only about 12 states that have true winner-take-all contests. Most have some type of hybrid system, with the state level delegates going to the overall winner, and the delegates for each Congressional district going to the winner of the district. So It could be very difficult for either candidate to get to 1236 delegates before the convention, especially since almost 200 delegates will go to the convention as unbound delegates, not committed to any candidate.