Who makes a good stamped steel rocker arm?

You might be getting deflection. No matter what arm I used or what pushrod I use I get about .025 to .035 deflection. Tried to solve it once. got nowhere. This was checking it with a solid lifter and the actual race spring. If you roll it with a checker spring the lift will be way over. Lobe lift and pushrod lenth is the only way to solve it. Jockety the stuff around untill you get the desired result. Good luck