I house sit at times so I move around A LOT. Started doing this right as BOS came out. I drag minimal around ... box, controllers and monitor. I use clients mouse, keyboard, speakers, etc. So I've played with speakers (2:1, 5:1, 7:1) and headphones (cans, buds, you name it) ... in this sim since day one (and similarly all flight sims since 95). In BOS I hear every single hit and my hits when in REAL close. All has been fine.
That said I think im a lucky one. I have, as we all have, seen/heard of SO many incidents of this in this forum and other forums, heck in this sim and others too. I wonder if it just boils down to an individuals hardware/software configurations and a small percentage are unluckily experiencing no hit sounds or combination there of. The only thing of slight difference ... no off the shelf boxes. I bought my last computer in 1993, built every system since. Sound cards or onboard ... used them all.
Either way I hope everyone can get sorted out someway someday. I feel the devs did a great job on what Im hearing and hope to keep on hearing.
I like that Finkeren ... lag! Makes much better sense.