Thomas,
Thank you. I executed the query this morning after disabling the scan types. I am including links to explain.depesz output for each of the three variations that I executed.
indexscan and bitmapscan off: http://explain.depesz.com/s/sIx
seqscan and bitmapscan off: http://explain.depesz.com/s/GfM
bitmapscan off: http://explain.depesz.com/s/3wna
Thank you,
James