I think this is my experience as well.

I tend to use a shotgun approach, and then follow with an aggressive refactor. It can actually take a lot of time to prune and restructure the code well. At least it feels slow compared to opening the Claude firehose and spraying out code. There needs to be better tools for pruning, because Claude is not thorough enough.

This seems to work well for me. I write a lot of model training code, and it works really well for the breadth of experiments I can run. But by the end it looks like a graveyard of failed ideas.