Hi, could anyone give me some info about upgrading the pots in my LS50 Reborn Old. I find the original ones muddy the sound and loose high end frequency when rolling off the volume. I am going for the 0.022 orange drop capacitiors and want a set of 500K pots that will go straight in without any drilling or messing about. Will I need short/long shatf (any idea of size 20mm??)