V8 Tungsten Fidget Spinner.. Micro balanceable!! :-)

Yet another fidget spinner from me.. This one has 3mm allen screws set into the ends to be used for fine tuning the rotor balance..
My previous best time was 2 minutes 14 seconds.. With this lil beauty I get 5 minutes 18 seconds!! Uses the same rotor weights and centre bearing as used in the V7...
The weights are golf putter tuning weights, made of Tungsten alloy, and available on ebay...
Centre bearing is full Zirconium ceramic...
The centre "mushrooms" are also available with some of my o