As far as I can see, the main selling point from the Tarantula demo video (which was also fairly abstruse - you never get to see the full routine, do you...

) was the spinning ring thing.
You can do that with the Fearson hook-up (infact, it uses the Fearson hook-up even with the tarantula) but without splashing on an expensive item with expensive refills.
Bit of a no-brainer, I'd say...
