Look, these bridges and tailpieces are excellent, but they come delivered in a nasty cardboard blister pack that looks like it's off the cheapest Chinese fake, laughable given the cost of the kit. There are no instructions for installing whatsoever. Go to Tonepros website to find installation instructions and you find a stern instruction that your warranty will be invalidated if you don't use the supplied special tool to install and adjust. What tool? There isn't one in the nasty pack! So what size holes do I drill? Tonepros don't tell me, they have a discussion about how some people like to drill one size, others have different views! These guys make the thing and they don't have a recommendation of what size holes to drill!
So, nice bridge everything else is seriously shoddy.