How many of you guys train with a crew and how many of you train by yourselves?

Sometimes if a crew isn't run in an orderly fashion, I know a lot of people who have opted to train by themselves for both the simplicity as well as the efficiency.

The flip side of that is you lose spotters, loaders, coaches and handoffs.

If you train with a crew, how has it helped you progress in powerlifting?

If you train by yourself, same question.