Hi I have only one Bass :-( and my action is medium(E2.5mm,A2.5,D2.4mm,G2.35mm) and the sound is good for finger style but i can't practice slap technique on it( it doesn't feel right) so l decided to get it down, on the other hand i saw Janek Gwizdala said that low action isn't good and he used to low action for many years till John Patitucci told him about the advantages of higher action and he changed it(he was regretful if i knew that before). I searched about the effect of distance between string and pickup and i found out the only thing affected is the volume. Now I'm confused and concerned about lossing the sound i have now. Also you think what is the proper action for slap? (Pls tell in numbers) Sorry for poor English. Thank you all in advance.