It is possible that MikroTik considering a change of holder SXT/SEXTANT, so that it can be adjusted elevation without buying additional holders? That would be a great advantage over UBNT products.

For small angles you can use plastic cable ties around a pole to tilt a holder.

We are considering it.

Meanwhile, you can look at something like this: http://www.rfelements.com/products/brac ... acket-sxt/