Hi, I’m building a two pieces neck for a telecaster guitar and I need to choose the truss rod. I want to use a truss rod with a spoke wheel at the heel and I know that the Stewmac hot rod spoke nut is considered one of the best quality TR. But I also know that it could weaken the neck and cause a crack. I contacted Stewmac support to ask them if their Hot rod TR could be used in my project and they did not recommend it. (Stewmac answer: “The recommendation is more for the neck size than the truss rod quality. If it is going to be a bigger neck (or you are installing carbon fiber neck rods to strengthen the neck) you can use the Spoke Nut Hot Rod Truss Rod. If it is a thinner neck and removing too much wood will greatly weaken it, we recommend the Hot Rod Low-profile 2-Way Truss Rod.”). I don’t know what can be considered a big or a thin neck but I have watched a video where David Fletcher is installing the Stewmac TR in a neck build that I consider to be thin. And I think that this man knows what he is doing. (www.youtube.com/watch?v=NZSDzBv_rIA). The alternative to the Stewmac TR would be a TR from Philadelphia Luthier, which is thinner than the Stewmac. I annexed some pictures showing the neck measures that I’m planning to build at the 12th and 1st fret with the channel for both truss rods, The Stewmac TR (red) and the Philadelphia TR (Blue). I think that at the 12th fret is not a problem to use the Stewmac TR but I wonder if at the first fret, the wood left underneath the TR is too thin (0.17” – 4.2 mm). I would like to hear opinions about installing a Stewmac hot rod TR at the heel of a thin neck. Thank you.