1) Would age be a factor as well?
nope.
2) When you say "for a rookie to play regular starter play on league and cup games, it takes a season tp have a pop at experience" does it mean he has to play all 22 regular season games as well as all the cup and scrimmages?
in my experience, yeah. each game counts for something, experience-wise
Am curious as to the rate as well as my 23 year old just popped in XP - to pitiful. He's been playing in at least half of the total games played (regular season plus cup plus scrimmages) these past 4-5 seasons (up to S16).
in his first three years, did he play more on league games or just scrimmages?
and again, i dunno also if potential plays a factor in the experience pop.