I currently own several brands of air rifles. I have more than one model in some of these brands. Since you ask about Vulcans, I assume you are interested in "bullpups" or semi-bullpups.
Of the all the rifles I currently own -- bullpups being my preference -- I would currently consider my Taipan Veteran .25 caliber Long as my "go-to" gun.
I know, just 2 weeks ago, I ranked my FX Impact X as my number one. However, 2 weeks and multiple issues have changed things a bit.
I rank my 'Pups as follows:
#1 Taipan Veteran
#2 FX Impact
#2a FX Wildcat
#3 Vulcan2 Tactic (semi-'pup)
* Factors considered: Accuracy, consistency, reliability, ergonomics, power, adjustability, aesthetics, length, weight...
The Vulcan are very nice PCPs. Mine are accurate, powerful and reliable.
However, if I could only own one PCP, that one would be the Taipan Veteran -- a veritable workhorse.