Do you have the Round common one?
My 863 has the "Other" one.. I heard stay away from knock-offs if so. Hopefully someone will be along and give their two cents.
I bought this one off amazon.ca ( Tykick 6735884) for $126 Canadian in July
The bobcat one was over $500 Canadain. Seems to be running fine so far
I have put about 60 hours on it so far