Solid Roller Lifters on a Hydraulic Roller Cam?

I bought a set a couple months ago for $575 plus shipping. I think the limited travel added around $100 or so. I bought them through Motorsportsunlimited.net
Ken is the guy to call there - his number is: 216-390-4561
The limited travel hydraulic lifters have between .015 and .030 travel before going solid. Standard hydraulic rollers have around .120".......