Which Vortek kit for a Cometa 400?

[Skillet]

I have a love/non-love thing with my Cometa premier Star 400 springer.  It's the one with the open sights.  The power is great, with 21 fpe using Hobby .22s, it's favorite pellet.  It is accurate, but only when I'm at my best behavior and it's noisy.  Twelve fpe with a smooth shot cycle, using a Vortek spring kit would be a great experiment to keep the Cometa in my, "I want to use this one" gun group.  I don't need the power, I just want to hit what I'm aiming at more often than not.  The rifle is pretty and seems to have good bones, it's just that It's too noisy and jumpy for me.  I'm a springer dude, like Yogi.  So I'm springing it for the long haul. 

How do I select a Vortek unit that will fit my gun?  I've checked the site, Cometas aren't mentioned.  Sorry for the long intro...

[Roadworthy]

Vortek may not have a kit per se for that rifle but if you call them with dimensions they can put something together.  Air Rifle Headquarters offers a free spring matching service which could also head you in the right direction.  Of course if you find only a spring to do the job it's not a big deal to get a guide made to fit.

[Mark 611]

I had to custom tune my own FENIX 400 compact! IMO and I have proven this with owning several of these rifles in .22cal and .177cal, these rifle are to light weight for the power they produce, they also have a very long steel top hat that make the shot cycle very harsh! I had to do a lot of thinking about tuning my rifle to make it the tack driver it is toady! I do not know how fast it is shooting at the moment but its not very fast in .22cal but @23yds it will shoot 1 ragged hole if I do my part!