Thomas,
I think some of us here, probably yourself included don't consider these courses "lesser" but don't worry I think I know what you are getting at! Here are the ones I've not played that I'm constantly trying to plan trips around and clearly failing...
Harris
Gairloch
Traigh
Glencruitten
Tobermory
Iona
Carradale
Dunaverty
Reay
Wick
Tarbat
Fortrose & Rosemarkie
Cullen
Fraserburgh
Carrbridge
Fort Augustus
Aberfoyle
Pitlochry
That's enough for Scotland! I need to start getting to see some of these quick before I do anything daft like join Brora! Also worth noting in reference to Niall Carlton's recent thread that virtually all of those are coastal!
Hallamshire
Reddish Vale
Delamere Forest
Ogden
Crosland Heath
All these are reasonably easy trips for me so I hand my head in shame...
Lastly...
Berkhamstead
Reigate Heath
Crowborough Beacon
Minchinhampton
Church Stretton
Cleeve Cloud
Yelverton
Afraid I'm going to miss out Wales and Ireland as that's enough for me to list without getting depressed! I feel bad that I often can't help myself in ticking off a big gun when travelling but the "lesser" courses I've gone out of my way to play recently have all been delights and so I'm determined to play more of these!
Thanks Thomas, wonderful little thread
Cheers,
James