What you can't do with a Rite bobbin is spin it. Well you can spin it, but they are so unbalanced they don't spin well.
I tried one of my Rite bobbins last evening and although this is true, I still had no problem spinning it. I use Rite bobbins and Griffin(actually Cascade Crest clones)bobbins. I like the Griffins/Cascade Crest models quite well. even have one sized for Pearsalls spools but, that said I like the Rite bobbins a wee bit better

To each his own;

Wayneb