Caught inside edges a LOT yesterday

Is this a real problem when tired? It was only happening cruising on groomed runs, but was happening so much I cut the day short at ~2.30pm. Hate missing open lift time!

Variables that have changed since last time I used these skis (80mm waist Dynastars): . New boots (have been fine on three other sets of skis) . Dynastars were waxed (shop said they tuned them too, but nicks are on all edges) . My skills have vastly improved (~seven days on mountains since last using the Dynastars)

Yesterday was my first Hike-To areas + first double blacks so am leaning towards blaming being tired (not stiff today though). Previously I've caught the odd inside edge towards the end of days. Also I used to clang skis together, but that's not happened since moving to stiffer boots.