I would add (from personal experience on my boat) that dash glare on raked back design can be countered (somewhat) with a roof overhang up front. By positioning the top edge of the windows a bit lower, you significantly improve the shade situation. I set up mine like this and the dash glare is managed, and there’s excellent shade in most settings. I also noticed improved sea handling with a down-sloped roof and raked back cab, so that’s a potential plus in favor or raked back.
View attachment 1199938
Two other ways I have found to fix the glare:
1. Paint the dash black
2. Put down black kitchen drawer liner....serves two purposes, cuts out the glare and gives a nice non slip surface for items you put on the dash, like a phone or a bluetooth speaker etc.