I'm about to use Neudorff for the first time - due to arrive this Friday. I'm a long time, but careful user of glysophate. Whilst that is very effective long term, it can be two or three weeks before plants show signs of dying. Neudorff, on the other hand, is claimed to show signs very quickly, but it is not clear how effective it is long term. Has anyone combined the two - and with what result, please.