I throw thumbers as often as I can out to 300ft if conditions are right. I like them best for distance when the wind is coming at an angle from your back going laft to right, that's an extra 10-25ft. there. Shorter distances are tougher for me as I don't have much control with my Firebirds or C-PD's, for shorter shots I used to throw a River for GREAT effect. Now it's a TL. OH is about the only thing saving my rounds lately, especially at unfamiliar courses. A thumber down the middle 250-275ft. to set up the next shot if fine in my book.
People tell me it's not "fair" or that I'm "cheating" I tell them that's just because they can't do it. They're "cheating" then because I can't throw a BH as well as them...