I tried the Brandywine my first year gardening. It was the pink variety. It did ok had a strange “U” type shape but was good tasting. It did not like the heat where I live and of course I had no idea what I was doing which is probably one reason why it did not do well.
High temps kill much of the pollen, and humidity clumps
the surviving bits. Fruit sets slow or stop when the
daily highs are consistently in the mid-90s.
A great tip to induce setting is to simply “flick” the
blossoms daily with you finger. A simple “finger flick”
or two will help stir up that pollen and greatly improve
fruit sets.
Brandywines and BW Sudduth strain(especially), are worth
the attempt and extra attention as they can be among the
best tasters out there.
JJ61