So I have just started to learn slap - and it is a lot of fun so far and I'm making some good progress but I'm really struggling with muting the strings I'm not playing. I am finding I need to combine several different techniques depending on what it is I'm playing and I'm not sure if I'm on the right track there - OR - if I should be sticking with and really refining the one muting technique to mute in all situations.
And part of the equation is that I'm an old guy with arthritis so I cannot get away with wrist contortions that I see a lot of players doing. I have to keep my wrists neutral and allow my fretting hand thumb to just go where it needs to go (usually aimed at the headstock) because of basal thumb old geezer worn out joint.
So when I watch the TalkingBass videos, he is almost always muting with his fretting fingers. If he's slapping the A string, his fingers are arching over the A while muting E-D-G strings ... and he bars his index and/or pinky to fret the octave for the pop while holding that same left hand position. In this picture his wrist looks relaxed and neutral - and this position works amazing for me if I'm only thumbing the E and A strings, but when I try to do octaves it really puts my wrist into a position that isn't healthy for my with my ancient joints. So I frequently have to mute the E with my palm or with my fretting hand thumb.
I kind of think I should stick with the method that TalkingBass uses and try to get really good muting that way. The hardest for me is when I want to do a hammer-on riff on the D or G --- I really want/need to use my fingertips for that. So the only way I know to mute the E is palm or thumb.
Any suggestions from you more experienced players is most welcome.
Here's a picture of the TalkingBass method that he does really well and I'm practicing it but find it challenging to master:

And part of the equation is that I'm an old guy with arthritis so I cannot get away with wrist contortions that I see a lot of players doing. I have to keep my wrists neutral and allow my fretting hand thumb to just go where it needs to go (usually aimed at the headstock) because of basal thumb old geezer worn out joint.
So when I watch the TalkingBass videos, he is almost always muting with his fretting fingers. If he's slapping the A string, his fingers are arching over the A while muting E-D-G strings ... and he bars his index and/or pinky to fret the octave for the pop while holding that same left hand position. In this picture his wrist looks relaxed and neutral - and this position works amazing for me if I'm only thumbing the E and A strings, but when I try to do octaves it really puts my wrist into a position that isn't healthy for my with my ancient joints. So I frequently have to mute the E with my palm or with my fretting hand thumb.
I kind of think I should stick with the method that TalkingBass uses and try to get really good muting that way. The hardest for me is when I want to do a hammer-on riff on the D or G --- I really want/need to use my fingertips for that. So the only way I know to mute the E is palm or thumb.
Any suggestions from you more experienced players is most welcome.
Here's a picture of the TalkingBass method that he does really well and I'm practicing it but find it challenging to master:
