I have a 1486 that I have used with my KG1000G, my XTL5000, my repeater made of two KG1000Gs and my VXR7000 repeater. it works very well - on simplex i'm getting 40+ miles with it.
Per the instructions I cut all 3 elements, and IIRC, the SWR was about 1.01:1 . Ignore anyone that tells you to not follow the manufacture's instructions how how/what to cut.