I'm about to buy a rycote stereo bar to use it with my kit of oktavas. This should provide me a quite versatile set up for stereo recordings (X/Y, ORTF, A/B).
The rycote bar comes in two sizes 40 cm and 70 cm. As I'm not really quite familiar with AB techniques, I would like to know if I would really need the extra 30 cm from the 70 cm bar. In which situations this could be useful?
The price difference between the two is almost irrelevant but for portability I'm thinking of going with the smaller one.