I would not personally trust a 7mm in titanium. I thought the whole 10 degree basically was to prevent pull out on Ti.
Especially if used. People forget that titanium's are wear parts and should get replaced.

Just my

That being said I have run aluminum retainers 7 degree with the recommended mopar spring for the.557 cam 30 year ago and never dropped a valve, but probably only put 2-3 hundred runs on them before moving on/up.

So they would probably work fine. At least for a few thousand runs.

All that being said my personal fav is the lightweight h-13's