So, my trip to Slovenia finally came around. I fished on the Lapena and Soca under the guidance of Uros Kristen. Just the one day, but had a fantastic time. 9 rainbows across the two rivers. No marble trout though, so I will have to return!
I can heartily recommend Uros as a guide, he's excellent company and has intimate knowledge of the rivers. Being Alpine spate streams in this area the watercourse, and hence holding spots, can change significantly year on year following the spring snow melt. Uros certainly knows where this year's hot spots are.
Tactics are mainly heavy nymphing to visible fish. I caught all but one on this tactic. The biggest fish, approx 3.5lb did come to a dry....which was nice.
I took my (one of Sandy's) Epic 580, which coped admirably with nymph and dry and right up to a Slovenian Muddler, which is more of a heavy jig than a fly. It represents a bull head and is fished as a streamer.
All in all a fantastic time and one I can heartily recommend if you have the opportunity