Hi Tom,

I use also the one you have and function very good.
I test this hall with 30.000 rpm, no problems.
If your engine isn't old (or stand still for a long time), you don't need to upgrade the ballbearings.
Most bearings can handle the 10 a 15.000 rpm easly.
My weedeater (Homelite 25cc) is about 10 years old and it run 12.000 rpm on the boat.