I’m no expert btw 🙂, I only use flats and I like an incredibly low action, it sounds like the higher tension has pulled the neck a bit further forward, a few tweaks to the truss rod should do the trick
Great track, nice Bassline by Earl Falconer, it was off their second album , Present Arms I think, the first was Signing Off which I bought when it came out, and I’ve still got it 🙂