When tserver.readahead.concurrent.max was set to its default setting, the load on our tservers was fairly low. So I changed accumulo-site.xml so the max is 64. (Go for the gusto!) Then restarted the tservers to ensure the change was picked up.
New queries are now running 32 concurrent scans on each server with several scans waiting in the queue. Is there some other accumulo parameter that I need to set to get more than 32 concurrent scans? Is something else affecting the scans?
