Another way to go is have your .20 modified with Blackgates & Schottky's. If you like the sound of the .20 and want to extract all it's capable of this is an option.
Of course the best thing to do would be audition the .20 & .24 together but if that's not a choice I'd suggest going over to the Asylum & reading everything you can about these two players.
Of course the best thing to do would be audition the .20 & .24 together but if that's not a choice I'd suggest going over to the Asylum & reading everything you can about these two players.