Did have a couple of my solid lifters wear and get stuck in the head, they sent me a brand new set and reground my cam for me foc and not had a problem since and i've had one for a few years now. Tbh i can honestly say i haven't had a cam last any longer....and the solid lifters were so much better for revving the car, hydraulics made a bit of a racket when revved hard for longer periods. Will be trying a different profile for my new engine when it's done, will be via newman though!