The brackets should be a vast improvement on the tilting but I don't think it will cure all of your woes. Remember that you will still have glass sliding up a channel of rubber (under pressure). You will still need to perform regular lubrication or spread the channel to relieve the pressure. Hopefully I'll be able to swap out the passenger side rubber on mine with felt (I've already done the drivers side with great success) and take some pix next week.
Any of you who snikered and had unclean thoughts when you read this - shame on you. I was trying to be technical but laughed when I proof read it.
BTW, I'll be ordering a set too but I'm not in a rush for delivery.