If you’re shooting a front rest I would recommend the spike feet and not the ones from sinclair. As far as a rear bag goes I like the protektor and edgewood. Edgewood is expensive but they are very well made. Protecktor is not cheap but less than the edgewood and you can buy them already filled with heavy sand. Most of the time you can call them and order custom height. I have seen plenty of folks that glue a piece of wood under the bag to raise it up. Do whatever makes you comfortable. There is one fellow I know of that uses a pillow under his chest for support and it works great for him.