Bought a pair of Saint brakes in January, and got the LBS to connect them to my older Goodridge hose. Bled through and fitted to bike.

Went for a ride and obvioussly not right- so back to shop. Hoses replaced (originals were pretty old and thin) and all seemed good.

Raced last month and had brake issues with the rear- air in the system. Bled, and all seemed ok.

Rode yesterday- more issues, but have now discovered a leak at the lever (under the top cap).

I know the brakes are tricky to bleed and have done the usual (tapping calipers/hoses to free air bubbles up) but have I just got a bad set? Time to send them back?