Surely the S7 has its own spindle lock
The early ones, like my old S7, did not. At sometime one was introduced. The only place I have heard of broken bull-wheels is this forum. I am sure it did happen otherwise why introduce a spindle lock.
I may be thick but I don’t understand this topic. What have magnets got to do with spindle locks? Magnetics appear to be offered as the universal cure to everything. Actually they are just a curse, slowly anything iron or steel in the workshop becomes magnetised.
JA