No harm done. Can't say I've done that before...but I have done something silly.
Have over a pound of merino which I've never spun before....I'm wondering why it keeps falling apart. I can't seem to get enough twist in it.
I hold it forever before letting the bobbin take the single up. I twist and turn and re-adjust everything. No luck. I give up before ruining my merino.
I grab merino and silk (which is easier for me to spin). As I'm swapping out the bobbins I think to myself *I better use the smaller whorl because I'm going to spin it fine and it will need a lot of twist*
Yup, that's me....spinning on the larger whorl with the merino.
Needless to say merino has been much easier to spin since then.