By choosing the Bomber research field, my bombs don't hit allies. The Uncanny Bombs feat requires Precise Bombs feat as a prereq which, as a bomber, I don't need because I get the same effect from my research field. So does the bomber research field satisfy that condition or do I really need to throw away a 6th lvl feat?
You should be able to just take it as a Bomber. I thought there was something in the errata about removing the feats whose effects are emulated by the research fields but I could be wrong.