[v-core 3.1 500] Further Tuning Advice

I have spent the past couple of days resonance tuning my newly-built VC3.1 500 and I do believe I have gotten my belt tension graphs and resonance to be decent at this point. However, I have noted that the belts do still slap a bit against the frame at their peak resonance frequency and was wondering what the optimal solution to actually verify that the absolute belt tension is about what it should be. After doing some tightening of both belts, I have been able to generate the attached graphs. I was wondering if it is worth chasing any further tuning, or just going with what I got, using MZV with the provided profile and playing with acceleration limits from there.