Anyone going to training should find the thread here that contains a lot of good info on how to bid. Also, the ALPA FedEx website has a great article titled, iirc, "Scheduling Matters". It's a must-read. If you can't find it, post here and I'll hunt it down and post a link when I get back to my computer.
Short story, your first month going to training bid any work days as late as you can, and as much as you can, under training. If you work a two week trip, have two days off, and then start training last two weeks of the month--perfectly legal however much it sucks.