I have flown with Jeff Williams. He and I had numerous conversations regarding the Sledge 540 and its design aspects. Jeff was gracious enough to allow me to fly his Sledge 540. I too have owned & flown Morris' profiles. I personally would take the Sledge 540 over the rest of Morris' profiles. I agree with Jeff's comments. As Jeff mentioned in his posting, I have put some movies on my website of him flying his Sledge 540 when I visited him. I have done this because I consider Jeff to be a friend and like to support and promote the hobby.
I hope that this offers some additional encouragement.
Take Care and Happy Flying!
Kevin