Relievers with Lowest & Highest Percent of Saves

I didn't realize before just how unlikely it was that Alan Embree, at age 37 and in his 13th year as a reliever in the majors, would at this stage in his career get a chance (due to Huston Street's injury) to be a closer. A little research reveals that, before this season, Embree actually had the LOWEST EVER percentage of saves in relations to games pitched in relief among those who've pitched 600+ games in relief. Before this year, he had 8 career saves in 704 games pitched in relief, for a percentage of 1.1. In 12 seasons, his high in saves was 2, achieved exactly twice. Four other years, he had 1 save, and six times he had zero. Now, in the last month or so, he's doubled his career total with 8 more! He's also moved "down" (or is it"up"?) the list of "top" (bottom?) 10 in terms of LOWEST percentage of saves to games pitched in relief:

Rich Rodriguez, 607 games in relief, 8 saves, 1.3 %
Mike Myers, 848 (thru 6/25/07), 14 S, 1.7 %
Mark Guthrie, 722, 14, 1.9 %
Steve Reed, 833, 18, 2.161 %
Alan Embree, 740 (thru 6/25/07), 16, 2.162 %
Chuck McElroy, 647, 17, 2.6 %
Paul Quantrill, 777, 21, 2.7 %
Hector Carrasco, 636 (thru 6/25/07), 19, 3.0 %
Bob Groom, 771, 27, 3.5 %
Julian Tavarez, 615 (thru 6/25/07, now starting), 22, 3.6 %

And the HIGHEST percentage of saves to games in relief, among those with 600+ such games:
Trevor Hoffman, 849 (thru 6/25/07), 501, 59.0 %
Mariano Rivera, 737 (thru 6/25/07), 422, 57.3 %
Dennis Eckersley, 710, 390, 54.93 %
John Wetteland, 601, 330, 54.91 %
Troy Percival, 605 (thru 6/25/07), 324, 53.6 %
Billy Wagner, 684, 339, 49.6 %
Rick Aguilera, 643, 318, 49.5 %
Rob Nen, 639, 314, 49.1 %
Randy Myers (no relation to Mike), 716, 347, 48.5 %
Tom Henke, 642, 311, 48.4 %
Lee Smith, 1016, 478, 47.0 %
Bruce Sutter, 661, 300, 45.4 %

Just one more entry full of fascinating, totally useless information!