I haven't read much of this thread so far, but as for the switch hit issue...if the batsman wants to change his stance in the middle of the bowler's delivery stride, what about the WI player Andre Russel, who once made it a habit of looking like he was pulling out of his run-up, only to jump into his stride and bowl the ball anyway? If the switch hit puts bowlers off, surely that must put batsmen off, right?
Also what about those bowlers who naturally have a pause in their delivery stride? Spinners generally are the ones considered here, for the obvious reason that they have less momentum to stop.
And finally, the rare instance when a bowler has zero run-up at all? I remember a Bangladeshi bowler took a wicket against Zimbabwe in an ODI (last year, I think) by that such route. In the event that the bowler has no run-up, he is obligated to inform the batsman that he is ready to deliver and the batsman must indicate that he is ready to face. But...that's about it. He can deliver whenever he chooses after that, once the batsman knows that at some time after his statement, he will do it. As far as I am aware, this only applies to bowlers with no run-up, ie who do not begin their "run" behind the bowling crease. Once they start their "run" between the bowling and popping creases they must ask the batsman if they are ready to face. Once the batsman is ready he can take ten years for all he cares. What about that? That can be misconstrued as putting the batsman off.
Of course I love all of them. Anything that gives bowlers a bit of advantage in a game rapidly being dominated by the bat is a plus for me.