Can I bump the traffic allocation partway through a Hydrogen experiment?

I started an experiment on a product page on our Hydrogen storefront at a conservative traffic share because I wanted to limit exposure early. It is behaving well and I would now like to ramp the allocation up to gather data faster.

Is changing the traffic allocation mid-flight safe, or does it compromise the validity of the results? I would rather leave it alone than end up with numbers I cannot trust.