I have heard of someone else doing mods on the CR1 crossover also, below a copy and paste:
Here you can see the whole crossover of the R1 (cr1 is similar). on the right the part for the tweeter, on the left the part for the midrange.
in the middle, you can see the infamed heavy duty resistor...
Thanks Joe for the invite, a lot of familiar names already!
Good luck with the new forum, will contribute where I can. I look forward to seeing it evolve!