The RFB was designed as a bullpup, and the engineers were well aware of the trigger issue. Having pulled the trigger on mine a number of times, I can honestly say they did it right. I have found the trigger neither heavy nor strange.
As for compromises in function, I don’t know to what you are referring. If better handling is a compromise, then the RFB definitely “suffers” from that.
and the "bullpup design suffers from a lot more than just trigger pull issues:
http://anarchangel.blogspot.com/2005/03/why-bullpups-are-persistently-bad-idea.html
"Bullpup designs are mechanically more complex, requiring a long trigger linkage, and control system linkages. This seriously degrades both control feel, and reliability, and increases bulk and weight.
If a bullpup has a catastrophic failure, instead of the explosion being six or 8 inches in front of your eyes, its right at your eyesocket, or touching your cheekbone or ear. The only good thing is if the bolt flys back, it doesn't end up in your eye socket. They also tend to eject hot brass, and vent hot gasses in the vicinity of your eyes and ears
Mag changes on a bullpup are much slower because they require more repositioning, and are difficult to see (if necessary) without fully dismounting the rifle.
-- A conventional rifle allows you to see your mag changes, and is more easily maneuvered with your dominant hand, which makes mag changes easier in general. More importantly a human being can naturally bring their hands together in the dark. Magazine wells should ALWAYS be either in your dominant hand, or just in front of it, because it is far more difficult to manipulate anything dexterously that is located behind your dominant hand.
Because of the positioning of the mag, bullpups can be difficult, or impossible to fire while prone (though this is common with some other rifle designs as well). Note in the pictures below, the magazine is by far the lowest point of the rifle; and being located behind the dominant hand, it will tend to strike the ground forcing the muzzle downward. This also causes problems with mags being warped or ripped out of the magwell, or the rifle itself being ripped out of the users hand when hitting the deck; that a conventional rifle doesn't have (the muzzle will just bounce up)
Charging the rifle and manipulating the operating handle is often more difficult, and sometimes can't be done without dismounting the rifle, or reaching over with your support hand.
Bullpups are naturally balanced in a
non-instinctive way; the balance point on most bullpups is in between your hand and your shoulder when mounted. The only way to correct this is to put heavy things in front of your dominant hand, or to make the weapon short and light enough that this won't make a difference (and even then it will still be more awkward and less instinctive to point). This will tend to make a bullpup shift unless it is tightly mounted to your shoulder, and especially will tend to shift during rapid fire. This tendency is somewhat countered by the position of your support hand so far forward on the barrel, but not sufficiently so.
-- A conventional rifle is balanced in between your dominant and support hands; and there are good reasons for that. A human being naturally handles things better that balance in the palm, or in front of it."
Got to admit, they look cool though.
