I'm more of a traditionalist ... so I've stayed with the Browning Citori line of guns ( I guess I have about 20 of them now ...) ...and while I have fired some of the Cynergy models ...I've never felt the need to spend some money on them ( although its been more about fit / than about styling )...
The Cynergy models I have fired ...seemed like they had decent triggers ...and as far as I know the whole Cynergy line has mechanical triggers vs the inertia triggers in the Citori lineup..
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per Brownings website..
" The Cynergy design was to be based on the reverse hinge concept put forward by Rousseau several years earlier, and it was Potter's job to design all the internal mechanisms ... resulting in the first prototype coming out of Browning's model shop in Morgan, Utah in 1999. By 2001 Browning partner, Miroku, had produced the first design verification prototypes.
"The design is clearly non-traditional," Potter explained. "Using the mono-lock hinge design put unique demands on the system. For example, when the action opens up, the strikers must cock by a `pull' rather than a `push.'"
Working closely with Rousseau, Potter designed the Cynergy's reverse striker system which assured very fast lock times. He created a striker type ejection system and integrated a toggle-type safety/selector. Potter's design assured good function with the mechanical triggers via an ingenious design utilizing an inertia block that prevents doubling while preserving exceptionally fast lock times. .......
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and I won't pretend to tell you how they work vs the more traditional inertia triggers.
A lot of my buddies shoot guns with mechanical triggers - guns that have full length tubes installed by Briley - where the inertia triggers were converted to mechanical by Briley ...and they seem fine ... As far as I know - Briley will set your mechanical triggers to break at 3#, 3 1/2# or 4# or whatever you want ...and last I knew they recommended about 1/2 lb difference between upper and lower - so they don't double ...but that may vary as well. I would call them - if you wanted them to put new triggers in ...but you can get a trigger pull gague and check the triggers on your Cynergy as well .
I don't know what kind of triggers Beretta uses ....
But if you really like the Cynergy line of guns --- I would suggest staying there and just buying another one in 20ga ...
but then, you're asking a guy that has about 20 Browning Citori's too ...but my primary guns for hunting, Skeet and Sporting is the Citori XS Skeet model ( and I have that same gun in 12, 20, 28ga and a .410 ) ... and the Citori XT for trap ...and a couple of Citori Lightning models, a BT-100, a BT-99 ...and just some others that followed me home ...(and some duplicates, just in case ...) .....
my Citori XS Skeet - primary guns ...
http://thefiringline.com/forums/attachment.php?attachmentid=52948&d=1256245028
a couple of my Citori XT - Trap guns ...
http://thefiringline.com/forums/attachment.php?attachmentid=58075&d=1268847103
I'm not saying a Ruger is a terrible gun / but their quality has come down some in the last few years in my opinion. I don't think you'll find a better gun for the money - than one of the Browning - or maybe a Beretta.
a man can't live with just one shotgun ... life would be too boring ...