I got a set of Manley +.100 Ti retainers today and tried them. Bad news is they have the same 2.020 installed height as the Comp +0.050 retainers! (evidently the guys who design these things don't agree what standard is). Good news is that they have a different shape on the top so they clear the Jesel rocker arms. Not much clearance but at least I can see daylight.

I need to double check the clearance with full spring load and then I'll snap some pictures. Maybe this setup with the Manley retainers will work. If not, I'll keep trying parts until I find something that works.

I also figured out that if I mount up two of the spring removal tools on the same shaft the job goes a lot easier. Too bad Jesel doesn't sell the tool this way, it is a big time saver.