Well, it looks like Guru can’t deliver their promised weight of 747g for their ISP frame. In fact, without the ISP, the frame was supposed to be under 700 gr. In fact, a non-ISP Photon frame weighs 894g!
If I had been assured that my frame would weigh under 700g and received a frame that weighs close to 900g, especially after having put down almost $5,000, I’d immediately return the product and ask for my money back. Talk about false advertising.