What adjustable rockers to buy at a reasonable cost?

only thru word of mouth a lot of guys i"ve talked to use and love Harland sharp very true this is a vital part to blue print or ink your ride or travel. Screws showed me a real good visual on the consistency of different types or company's that do not hold a standard in arm length. search under roller rockers and winstoninwisc it will shock you about the uniformity between different heads and rockers geometry from the pushrod length, to the valve guide on a rocker over riding the valve at higher rpms and im not talking 7000 a bad set up can go wrong at 4000 this was a true eye opener for me . Not inking this travel even side to side ,if you override that valve it will shut you down quick thanks to Mike my engine builder and Screws and Tony I saved a brand new engine . please go look up the graffics Screws put up for us all in that question ,let alone the springs catching a rocker arm or hitting on it until it goes BANG