My friend told me that they make every note sound nearly the same volume, no matter how hard or soft you pick, making it near impossible to cresendo and vice versa. I don't believe it but I don't know for sure. So is this true or false?
Alright thanks, I didn't think it was true, it just didn't make sense in my mind how a pickup could do that.
In a way he was sorta right.

Higher output = moar distortion = moar compression = notes sound at same volume no matter how hard you pick.

They don't sound the SAME but they do more so than the average passive pickup.
My gear:
PRS SE custom
~!~--Peavey XXX super 40 EFX --~!~
Peavey VK 112

===WGS Vet30
===JJ power tubes

-ISP Decimator
-Digitech Bad Monkey
-Crybaby wah
-Korg Pitchblack
-Danelectro FnC EQ