Closed Cell inserts?

['caster master]

I race mainly 1:8th and closed cell inserts are the only thing anyone uses now, as soon as they buy a Schumacher tyre for astro or grass they usually swap the inserts for closed cell version from AKA or Pro-line because of how soft and spongy the Schumacher inserts are.

I wondered if anyone uses the closed cell inserts from Pro-line or AKA on 1:10th buggies on astro or indoor carpet, or does everyone just run the Schumacher inserts?

Thanks, Jon.