One of the major differences is duration, ime with the 2c's and i have alot. 2c-b generally lasts about 4-8 hours, ive had one trip last closer to 14 but that was with a 113mg dose (in the name of HR dont do silly doses)
Whereas 2c-p can last 16-24 (dose dependant). The other difference is the feeling and visuals. I always seemed to have very 'warm' visuals eg red, pink and orange and it felt fer forgiving when it came to high doses. Whereas 2c-p the visuals were 'cold' blue, green, purple. Very similar visuals to 2c-e but just different colours ime, but 2c-p is most definetly not very forgiving in high doses! So if your wanting a nice chilled night getting high, giggling, and looking at nice shapes and colours go for 2c-b. If you want a day of skull fuckery go with 2c-p. Personally i would mix a small amount of each but thats judt me.
Also 10mg 2c-p is an extremely high dosefor someone who has never tried it so tread carefully.
I know when i was 2c kingpin in my area i was dosing sugar cubes with 5-7mg 2c-p and 17-20mg 2c-b.
And no i didnt not dose on sugar cubes to sell as acid. I didnt it as i like having powder, vials of liquid and a solid for dosing on, as i like to be a one stop shop ya know
Anyway guys take care!
Peace and happy tripping