[quote name='Bloodaxe' timestamp='1418723444' post='2632603']
Do you bend the strings at all? That can cause hollow spots irrespective of string choice.
Hopefully that'll get you out of jail. I always slacken the truss about 1/4 to 1/2 a turn & up the action a tad after a re-shoot as my playing style isn't very compatible with a super-scary low action.
The Gallery are currently charging £80 for a re-shoot which I view as part of the fun of owning a fretless. I'll probably have to put mine in sometime next year for a skim which will make it 3 years since it was last done. It's my main bass, I use Rotosound Pressurewounds & don't have a light touch, so that works out as roughly the same as a set of new strings per year of use. I regard the expense as an acceptable cost vs the results. If you use flats, only play it occasionally, and don't hammer it the interval ought to be a lot higher. You're still applying steel to rosewood though & that's going to cause wear sooner or later.
The other thing is how accurately it was shot in at the factory. Most mass-produced fretted instruments benefit from a level, crown & polish and to my mind a fretless is no different.
P.
[/quote]
Points taken and info gratefully received, thank you. I'll experiment this weekend, with a bit of luck, and post the results here.