Good idea.
BTW- the 28x10 Mejzlic is about the same static load as their 27x10 .
Strange - but that's how it seems to be .
So you have POSSIBLY , a higher tip speed with that prop in the air which makes more noise.
We went through a similar test - and found that the Mejzlic 26x10 actually gave better overall performance.
You must exercize more throttle management but the model -in our tests- actually performed better on the smaller prop.
Faster recovery on uplines .
Don't be afraid that the 26x10 is too small for the 100- just use the power needed - then throttle back for the rest of the stuff.
Actually this is much easier on th engine -as it keeps temperatures down.
If you are into the hover stuff - it will also reduce load /heat -which kills lots of engines.