[fngMalvos]

Wouldn't you just compare the change in conversion rate and the amount of CP you earn? I.e. if you want to convert CP to REP in Engineering it's 0.01, for Politics it;s 0.04, so if you generate 4 times or more the CP in Engineering than you would in Politics, don't switch.

If you are rank 9 in Eng and 1 in Politics, I would think you make more than 4 times the CP in Eng (no idea for sure though) in which case you've already compensated for the lower conversion.

Work experience is different though, you would need to make 25x more CP in Eng than Manufacturing, so in that case it's probably worthwhile to switch.