This is currently one of the big subjects on BI forums, along the usual stuff like performance, bipods etc... As a long time Arma player, I enjoy the new feel, it's very fluid, it simply feels good. Of course, this brought new issue, players are able to spin like mad no matter which weapon they use. I agree that this needs to be addressed, but is the negative mouse acceleration the only way?
Is it possible to have the level of responsiveness and precision like now, but limit ability to turn around depending on how heavy your weapon is?