Over the last few years I've been gradually reducing my training volume (roughly by about 50% in the last year) but my performance has actually improved all round. I put that down to more structured interval training focused around my target events. Most of my riding peers are more old-school in their approach, but don't really have enough spare time available to rack up enough volume to make it work effectively. The best training method for any individual is largely dependent on their goals, available training time and ability to recover. I find nutrition is even more personal.