RIOs InTouch Skagit iMOW Light Tips have an intermediate section instead of floating, which creates a smooth depth transition between a floating body and fast-sinking tip, and perfect contact between the angler and the fly. The iMOW light tips have T-8 for a sinking section (with a sink rate of 7 per second), and are most suitable for Skagit lines of 475 gr. and less. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Tips.