I am happy to report that Carrick no longer presents the complicated challenge of negotiating multiple forest tracks. Unfortunately we didn't know this until we were on the way down. First the wrong way: Having ascended via a start point at T21899 93543 A, we followed a track south for 1.5km to T220 926 I, turned left back toward Carrick and followed a relatively straight track for 2km, where it narrows considerably, but then meanders all the way up to the summit. Don't go this way!
Start at T21899 93543 A as before. About 150m up this track is a T-junction of sorts. Go left. The track swings to the east for for about 600m (it is a relatively newly-laid track with shiny white-grey stones). This intersects the track at T228 937 J (that we had mistakenly taken on our ascent), leaving you only 500m from summit. Our journey up was 3.5km. Our journey down was 1.6km! Linkback: https://mountainviews.ie/summit/865/comment/20570/