Not sure why it's important for someone to answer who has used them.
That's kind of what I was getting at... does not seem necessary on something like this. But hey, what do I know?
I'll admit that I didn't know they required so much spring pressure to keep the lifter from bouncing, never heard of that myself and frankly the idea seems kind of extreme. Out of my low-buck realm for sure so yeah, I guess I really don't know. I doubt many people here on this forum besides Perfacar do either. Maybe go on Class Racer and see what you come up with.
What I do know is that for an off the shelf Lunati cam, 200lbs. open pressure is probably more than you need. Sorry to bother you with such trivial information, next time I will keep it to myself. Not sure if someone who has actually used them would tell you anything different.
There is no easy way out of breaking in a cam. Why didn't you ask your question in a different way? Spending $900 on a set of lifters is not the answer. I can speak from direct and recent experience on that very thing since I just had my motor on the dyno on April 15. It's a solid cam similar to the Lunati and I am using PAC springs. I removed the inner springs for the break in before I set up the valve train. Actually makes it a little easier to turn the motor over. I used the lube supplied with the cam for the break in and Joe Gibbs break in oil in the crank case. Break in went fine. After it was broken in, it took me and the dyno guy under 30 minutes to install the new springs to do the full power pulls. I timed the whole process since I was paying for the dyno time, was 27 minutes.
If you have the right tools and lubricants and are clean and organized, it's really nothing.