After you replace the filler in your rest with sand cobble together a box to hold the front one upright with a wider base so you don't have to worry about it moving around on you. Then get a Bald Eagle rest as soon as you can afford one and add a Shade Tree top to it when you can. You will not believe how much better and easier you shoot. Your 260AI should really make you competitive at 1K when you get there. Best of luck.