I don't wanna start a Anchor vs non anchor here but i just wanna see what is considered "anchoring" Is lightly resting your palm on the bridge considered anchoring? i can play across all six strings and my palm just moves higher or lower depending on the string. I do this cause a free floating hand just feels tense when I'm standing and I miss strings.
No, resting your palm on the bridge is a good thing; it helps to mute the unplayed strings.
usually anchoring is done by having your spare fingers holding your hand in place, for example on your pickup ring. it is advised to do so when sweeping,
it is advised to do so when sweeping,
Says who? Personally, I think that any kind of anchoring limits the mobility of your hand and wrist, thus causing you to use more elbow and arm than necessary. This should apply to you regardless of if you are alternate picking, sweeping, etc. Again, all this is my opinion. Anchor if you must, but know that most guitarists frown upon it.
I do this cause a free floating hand just feels tense when I'm standing and I miss strings.
Well, whatever you want to call it, requiring your hand be stabilized on the guitar
in order to not miss strings can only be a limiting thing to do. It doesn't have to
be that way. How much you think it's limiting for your playing, only you can decide.
Touching the strings/bridge to mute them is completely different from resting your
hand. Muting is by no means a given (and certainly not required for sweeps). It
all depends on your style and how much distortion you use and your skill at muting
with the fretting hand.
I don't wanna start a Anchor vs non anchor here
good luck with that.