NDW, not to my knowledge. Tended to have FJ navs at 2 ANS who had less experience at log and chart work and 'real' navs, ex truckie and coastal, at the more cerebral end - night astro etc at 1 ANS.
Later, at ANS, the less experienced pencil merchants taught in basics, the more advance streams, low-level FJ and ME, were taught by FJ navs and experienced ME navs.
My term 'less experienced' was relative as many of us had thousands of hours in more specialist roles.