SME V and cartridge spacer

So, justmetoo, by your calculations what would adding the 3 additional grams for the spacer do to the resonance frequency, everything else being the same?

Also, could someone explain what one might hear in ones system, all else being the same, with the cartridge/arm resonance frequency at either ends of the acceptable range, say 7-8 and 11-12Hz?

The rf without the spacer by using the 7 gram cart mass only, is showing up as 9.5 Hz.
Still well within the accepted range of 7-12 Hz. 
Though in this case I'm not quite sure about the best damping setting with the SME V arm. 

My intuition tells me the set-up with the spacer, considering the cu of 16, will be more favourable.
If the cu was more toward 18-20 then I'd opt for the setting without spacer, but not with the SME V arm, due to the issues mentioned. 
So all this looks IMO (and YMMV), just fine  using the spacer with this cartridge, on the SME V arm.
Finally, DO NOT underestimate the finer differences in SQ that small changes in damping settings will do. 
Michélle