Spaghetti/Zak,
Spaghetti already answered to your question first, I prefer the Stealth because it is really neutral in the water it is really well balanced and honesty I do not think that the conical air chamber of the Cyrano worth the difference in the price.
Without that difference It is basically the same gun.
I do not know what accesories is Spaguetti mentioning, because like all the pneumatic spearguns in the market the original shaft and in most of the cases the loader need to be changed for other ones.
They are two of the few pneumatic guns with internal barrel of 11mm to be used with 7 mm or less shafts, that for fishing in Europe is more than sufficient.
But here in USA or in the Caribbean I still prefer the 13 mm internal barrel guns that can use 7 mm or 8 mm,like the Mares Sten, Seac Asso, Cressi SL, etc.
If we compare with the same 7mm shaft, a bigger piston is much more efficient that the smaller piston for the same pressure.
Zak it is also a bad news that Mares did not manufacture pneumatic guns longer than 100 cms. The only place where you can find new spearguns but old model Sten in 115 and 130 is in Venezuela and some Mares Pipin 150 here in Miami.
Are you the representative for USA or just the West Coast?
Please send me a PM with your email, I am interested in asking you some details.
Cheers
Ivan