[Adger Smith]

Have you ever tried one of the solid teflon "O" rings. I would bump the line pressure to 170. I have always had difficulties with lower pressures.I fixed up a fixture to put my leakdown tester on the servo and tried a bunch of different servo's and ring combinations.You do get rid of the cushion spring?? Which way do you space the servo when you get rid of the cushion spring? The double "O" ring will seal, but won't release as clean as a single ring. If you are going to use the twin ring try putting two of the stock Alum rings with the coated face on that servo. Seals and moves well.