cayugad , Ive done all thouse things . The reason I tryed harvesters is because shockwaves are VERY dificult to load with the stock sabots , the harvesters are 1 1/2 thousands of an inch smaller , but still are unresonable . The powerbelts are fine , and shoot great , but the crud ring is rediculos , didnt have that with my knight . The sights are a difrant story all the way at the lowest setting , and it shoots 8 inches high at 100 yards , this gun is DIFICULT at best .