Does it pay to cast your own type? 1 edition

Debug Stats

SUMMARY

memcache.get: {'count': 6, 'time': 0.004154205322265625}
total: {'count': 0, 'unaccounted': 0.043784618377685547, 'time': 0.057751893997192383}
solr: {'count': 1, 'time': 0.0045449733734130859}
memcache.get_multi: {'count': 5, 'time': 0.005268096923828125}

Details

memcache.get 0.000823974609375
    {'hit': True, 'key': u'/works/OL15210993W'}
memcache.get 0.000252962112427
    {'hit': True, 'key': 'd/works/OL15210993W'}
memcache.get_multi 0.00173687934875
    {'found': 1}
memcache.get 0.000946044921875
    {'hit': True, 'key': u'/authors/OL2392615A'}
memcache.get 0.000252962112427
    {'hit': True, 'key': 'd/works/OL15210993W'}
solr 0.00454497337341
    {'query': {'key': u'OL15210993W'}, 'fields': ['cover_edition_key', 'cover_id', 'edition_key', 'first_publish_year']}
memcache.get_multi 0.000565052032471
    {'found': 1}
memcache.get_multi 0.00115299224854
    {'found': 1}
memcache.get_multi 0.0011100769043
    {'found': 1}
memcache.get 0.000809192657471
    {'hit': True, 'key': 'd/works/OL15210993W'}
memcache.get_multi 0.000703096389771
    {'found': 1}
memcache.get 0.00106906890869
    {'hit': True, 'key': 'inlibrary.libraries-hash'}