There is a 5 star review from a Mechanical Engineer who fixed his 2015 CRV with the 5A2 VTC Actuator, which is the new R44 design. There is a longer spring with a smaller diameter in those, same as the R5A and the upgraded R44. The engineer also replaced his timing chain tensioner and his cold start rattle is fixed using an OEM style replacement spring.I've already had the actuator replaced by a shop, but will keep his kit in mind if the noise returns. It'd be nice to hear some feedback from someone who's actually used his kit.
His VTEC is engaging properly as well because the spring force on the spring he used is similar to OEM design.