SBM Roller Lifter Choice

I will admit that I should have done more research before supplying a set of hyd rollers to my builders.
But, the wrench in the gears, I have met, talked to and saw with my own eyes other Mopar folks that are successfully using hyd roller setups in stock block applications.
Agreed, it can be done. A friend of mine just completed a mild build with hydraulic roller lifters. He is totally happy with the motor. But the devil is in the details. I will try to get specifics from him and post them here. I could have sworn that he told me he used a specific lifter that Ryan Johnson told him to use, and it is very tall.
Also as was pointed in a previous post, having good system pressure does not mean there is not an issue with leakage at the lifter.