Quite the kumquat orchard you've got there, which tree is your favorite?
Only my New Zealand lemonade and Meiwa kumquats have fruited. The Meiwas are tasty but low volume producers an extremely slow to grow. The NZL's were quite tasty too, but in a totally different way. The NZL win because they were a close second in taste and far more production in fruit volume.
Texasquat, send me you name and address by private message and I will send you a copy of Nagle's book. Nagle's book was never sold as a hard cover, but rather as a stapled copy. citrusgrowersv2.proboards.com/post/new/556