Sorry if it was vague, coffee had not kicked in yet. No real question, was merely pointing out the heads come with valvetrain options some might not be aware of.
Again, I believe most reading this would not be in the titanium retainer category.
I may try to call next week to talk to someone before I start numbering the ports permanently and taking a grinder to them. For what the salesman from summit was saying it sounded like they were going to narrow their part numbers and do away with the moly retainers on the bigger spring .690 spring package. Personally I think it would be a smart move because IF and I said IF a moly retainer would fail on a set of heads with a big spring higher pressure application who is going to look like the bad guy.