On the back I put high quality recaps -- from the same supplier as we use at the trucking company where I work. It used to be that the cap itself came from a big roll, and there would be a seam -- which sometimes contributed to the cap coming off. But now you can get caps that are made as a hoop and slipped onto the casing "sideways".
I've seen fresh recaps blow sidewalls, so the source of the casings is important -- the inspection they perform before they approve the casing for recapping, that is. X-rays and whatnot.
On the front I put new Chinese tires -- Double Coin brand. Hate to buy Chinese stuff, but....
Have not driven enough on them to have anything to report yet.