Since I chimed in about it ...
That's right, the late-flowering reaction called foxtailing can be easily prevented by the experienced grower. It may be due to genetics, but I stopped seeing it fifteen years ago.
That was when I heard a talk given by Mike Corral of WAMM, where he told of the plant processes happening during late flowering that cause foxtail buds. It's a result of the feeding that we do, and the plant actually storing too much, while being unable to produce seed. The way to prevent it is to slowly remove the main-stem fan leaves. Starting half-way through flowering, remove the bottom two leaves from the main stem, and then each week remove two more, going up the main stem. So over the last 4-5 weeks, you will remove 8-10 fan leaves, even if they are still green. When Mike said that, I was skeptical, until I tried it several crops, and I was convinced.
I haven't seen a foxtail bud since.