I think we'll see more severe chops in the 2nd quarter than the 1st. Usually summer months are slow in a bull market but not so in a bear market. So if you dislike chops, you'll really love the next 3 months.I really dislike it, but for now it's all I know.
I agree with your read on incessant whipsaws, though. Less certain about 4200.

I figure it'll be 4200 since that's the top of the chop range.