Now, with a huge amount of inductivity I got my 5068.8kc crystal pulled "down" to just below 5070kc.... I don't get it! I remember times, when I did not manage to pull a crystal above it's nominal frequency. OK, yes, I know the game about series and parallel resonance, and, when it unknown which one of printed on the device...
Back to experimentation, and maybe I will sort things about before going nuts!!