Not having any experience with the evil weed yet, would a gramincide with astro kerb stacked have a strong effect on it or is that a losing battle ?
The only special things about Astrokerb are the price and weed spectrum. Straight propyzamide is cheaper, does the grass species but only a few broad leafed weeds. Yes, a contact graminicide would strengthen the control but in the disturbed soil where the tines run you’ll have deeper rooted blackgrass that Kerb will do less of. Strip tillage DD does not help cure a grass weed burden. The rotation does.