While planning my Roubo build, I narrowed it down to these 3 candidates for leg vise screw:
$36.50 Lee Valley
$69.99 Woodcraft
$85 Lie-Nielsen
It is impossible to determine from their websites why LV screw is so much less expensive. I wish to have smooth leg vise action (will also use Benchcrafted rollers). I might attempt a mod to replace the handle with a cast iron hand wheel a la Benchcrafted at some point in future (such as this one - don't know if it is possible to get it to mate to screw). With all this in mind, is there any reason to not get LV screw?