Do not buy 1/2" tuners for that headstock - measure first. Certain SX basses came with 1/2" tuner holes, but most have 11/16" tuner holes. I'm finding it difficult to picture Rondo selling you a neck WITH a nut, but no tuner holes....might you be referring to the screw holes to secure the tuners (I am thinking this since you said 'tiny' and also mentioned no string tree hole). I haven't had a neck-only order ever come with the 'SX' logo (and I'ver ordered 4 ). Neck Bolt holes missing is a good thing - no, a GREAT thing. This way you can line them up to your bass and make them yourself - no chance of mis-alignment.