On RH rifle the front fires the right pipe. On LH rifles it's the left that gets touched off first. You can look at the 'stagger' of the triggers and see this. They are regulated this way and supposedly the regulation isn't as good if the wrong trigger is pulled first. I haven't noticed this personally though.
As far as doubling, I've seen and done it. It's not the rifle it the nimrod using the tip of his finger and strumming the back trigger! Get used to holding the trigger in the first joint of the finger. No strumming and no rock your world doubling. My 450NE was noticeable recoil at the bench!
AkMike,
I'm +1 with you on the first joint of the trigger finger being "more sure", especially when choosing to fire the right side barrel, IE; forward trigger first, on decent kicking doubles equipped with double triggers (same positioning of the trigger finger as for shooting double action revolvers during the trigger cocking phase)..
For general hunting with double rifles I carry my soft in the left barrel and my solid in the right, including for largeish non-dangerous game such as zebra.
Can't think of what scenario might be as follows ... but if I ever had a scenario that called for my FIRST shot to be a solid then quickly followed by a soft, seems to me I'd have time to choose the corresponding trigger.
(Elephant and hippo on land do not count, as I would carry solids in both barrels for them).
The chap I mentioned must've been using the last pad of his trigger finger, because, (according to his own critique of both of his doubling incidents), his finger lurched off the forward trigger during recoil and bumped the rear one with enough force to fire the left barrel, as in strumming a harp.
The shooter was Zimbabwe/Tanzania PH, Gary Hopkins who is a large and physically powerful fellow so, he was not bothered by the doubling of shots as far as I could tell (I would have thrown myself on the ground and screamed like Jane Fonda having a nightmare about Free Market Capitalism.)
As far as I know there was nothing wrong with the rifle itself, as several of us fired it before and after the "doubling incidents" plus, Gary proclaimed his error both times like the big boy that he is.
Furthermore the rifle belonged to Cal Pappas and it is no secret to anyone who knows Cal that, if he had a malfunctioning rifle, he would immediately "deadline" it and post haste send it to a proper Gunsmith with sound reputation in fixing bespoke double rifles.
Cheerio,
Paul (Velo Dog)
PS:
I apologize for not fetching my things out of the back of your truck and I have no legitimate excuse.
If they are still there, I will make it my priority this week.