The report should be ready soon and will send you over a PDF copy. Concerning your colleague’s scepticism, a prominent barrow cemetery does stand around 2.5 km to the north but they don't have to be in direct view with Trefael. It could be the case that during the Bronze Age, Trefael and other standing stones (associated with the barrows/cairns) interacted with each other and only the nearest standing stone to the barrow cemetery was intervisible (see Children & Nash 2001 [research in Breconshire]). I will say that your mate Tiompan is a tad curt with his responses. When dealing with archaeology, there are number of approaches one can make. The first and most useful is the report which is usually very flat, banal but informative. However, we are dealing with people but many archaeologists still focus on artefacts. In prehistory, ‘if we don’t have a go’, the subject is dehumanised flat and...guess what...banal. To play safe, I will still use 'maybe'. Like I said earlier, you should have been there. We will be probably excavating/investigating here in June/July 2011 and you are of course welcome to come along and have a look. GHN
This is going to sound silly, but years ago when I was studying a map of Pembrokeshire, there seemed to be standing stones in a straight row from around St.Clears to St. David's through the landscape..