I put my antennas internal. They are not always straight (in fact I don't think I've ever seen one straight), and sometimes they do 90 degree bends and even 180 degree bends. Sometimes they will do a complete 360. But MOST of the antenna is (Relatively) straight.

I have never had any kind of problem resulting from a bad antenna placement, BUT, I should also stress that I am not one of those fliers who likes to see how high he can go, or how far away his plane can fly. Personally, I just think that's bad form.

I like to keep the plane where I can see it.

PS and BTW, I DO occasionally get VERY high when practicing spins, so I do have good range.