Bit of a steep climb up from Boot - or so I thought at the time - but well worth the effort since great scenery as well. Liked them much more than the great lowland circles (except Sunkenkirk), to be honest.
Yes, having looked at the map again I can see that Boot's a better starting-point; I presume the climb can't be any steeper than the one up to The Druids' Circle above Penmaenmawr?