I'm assuming the answer is no but is the seperate crit damage roll from force arrow imbue affected by elemental arrows damage dice? I know for example that if you choose acid arrows at tier 1 and then elemental damage for tiers 2-4 your dice increase +6d8 - so if you choose those options and force arrows the force arrows number goes up 6d6 but does the Crit damage increase from 1d10 to 9d10 for x2 multiplier weapons and from 2d10 to 10d10 for x3 multiplier weapons? In the same sense, if one were to choose improved elemental arrows from tier 5 of AA would elemental dice affect the crits there?

Also, I'm assuming so but is the extra Crit damage in these cases affected by spellpower?
Thanks!