[OM] OM-4 Family Tree

[John W. Sloane, DMD]

Hi, Gang!

With all the recent talk about OM-4 sub-species, having different circuits even 
within the same species of OM-4, I was wondering if there are any differences 
between/among the variations of the 4T/4Ti. To be more succinct, are there any 
differences between the OM-4T Champagne, The OM-4T Black and The OM-4Ti Black 
other than the exterior treatment?  

Thanks,
John