Hawaii. The most sought-after postal route of them all. The air is so dewy-sweet you don’t even have to lick the stamps. ~Newman
The Hawaiian Winter League was brought back a couple of years ago for a good reason, and that is to provide a better alternative to nurse a “project prospect” into getting some extra work in than the Caribbean Leagues. Unlike the dry air of Arizona, the dewy-sweet air of Hawaii makes for a more neutral or even pitcher friendly environment.
The Hawaii League has also more recently has been used for clubs to send some of their late-signing draft picks, but in most cases it’s more for lower level prospects coming off of disappointing years whether it be due to injury or struggles. I wish my job did that. I’d love to hear “Erik, you’ve been really getting your can kicked lately, so we’re sending you to work in Hawaii”.
It’s a mixed league that includes Japanese players, which provides a great test for hitters needing to work on their approach. If you were one of the few and obsessed people like me that took the time to watch Olympic baseball, you noticed Asian pitchers have a tendency to pitch backwards. A hurler from the Far East is more likely drop a breaking ball or a change-up on you in a fastball count, so “dead red” hitters need to be on their toes. The Cardinals sent four players to Hawaii to work on their game, some more interesting than others.