The problem being that I'm considered a long oval and my chin rubbed against the front of all of the helmets.
This.
My head is basically a large block. I never really have fore/aft fittment issues with any other make/model helmet, and almost exclusively wear a size Large (I can wear several models of both Shoei and Arai - the great "either/or" qualifier - fairly comfortably) in virtually every model helmet, although Scorpion size Large is quite a bit snugger than the rest (I was forewarned before I mail-ordered mine, and subsequently re-gifted it the the Mrs. :teeth).
Again, with a wide jaw and short chin (no neck, etc..
), nearly ever modular I tried either touched my chin when the chinbar was fully locked down, touched my nose and rubbed my chin when closing, or the chinbar was at least close enough that I could push my chin into the chinbar with a slight movement of my jaw.
In my layman's guess, the farther a chinbar is from your face, the more impact the sidebars will dissipate before the EPS liner gets put to the test upon impacting your face - sort of like a suspension-type hardhat. In my experience, it's rather easy to dislocate a jaw or even shater a jawbone with surprisingly little impact.
I tried on every available modular helmet in town before I bought, and I actually settled for a relatively unknown bargain brand - ZOX. It was at least as comfortable and precise as even the Nolans (one of the older names in the modular game, IIRC? - Schuberths weren't available even at the Bimmer shop), and a friend gave me a great deal on the ZOX in hopes that I could help him promote the line since he recently became a reseller for them.
Overall, the quality is akin to a mid-level KBC (one of my preferred brands) - a touch noisy (although quiter than I expected with a modular), a touch heavy, and the shield-swapping mechanism is a bit fiddly. Otherwise, It's been a decent spare lid. But as I mentioned above, it only gets used around town and very occasionally out of town running errands, and only in the winter...
FWIW, I've talked to many claustrophobic riders whose anxiety was eased due to being able to flip-up a modular helmet when stopped or crawling. If you know anyone with this affliction, recommend them to try a modular as a stepping-stone towards a true full-face helmet. :thumbup
Hope this helps,
-Q!