4g61 cam gears: 4g61 has shorter deck & 4g64 has taller deck vs. 4g63 . . .

[dsm-onster]

I've never gotten a direct or reliable answer on this. . .

Since a 4g64 has a 6mm taller deck than a 4g63 and a 4g61 has a 6mm shorter deck than a 4g63, is it possible that the 4g61 cam gears are aligned like the dohc 4g64 cam gears? And can be used on a 4g64/4g63-head combination????

. . . Just hoping there are more options than the rare 4g64 head or adjustable cam gears. . .