I've seen the same suggested of Sergey Karjakin, and he made it to the top (and I've seen it suggested that it helped him get to the top, that being a GM sooner

I've seen the same suggested of Sergey Karjakin, and he made it to the top (and I've seen it suggested that it helped him get to the top, that being a GM sooner got him more access to top trainers sooner).