Grade acceleration, even SSA, was essentially discouraged by the principal, who'd prefer to find a way to meet needs in the classroom. Apparently, the question gets asked by parents at times, but it just doesn't happen.
This is why the IAS is so important - schools are understandably worried about an avalanche of 'me too' requests from affluent and pushy parents - the IAS sets a pretty high bar which reassures the school they have an objective measure to use that is fair to all but will also filter the amount of actual skips that they will need to consider.
