Graph Tec guitar parts are awesome About the Graft Tec nuts drasticamy guitars help my guitars stay in tune.
When I first heard anything about Graph I had a guitar with factory metal string trees and was having major problems with tuning my 1st couple of stings. The strings were hanging up on the trees. Id tune a string then go to the next one and tune it and it pulled the 1st string out of tune. I replaced the trailer trees with the Graph Tec trees and problem solved. I build custom electric guitars and leave the option of GT's nuts and saddles as an extra. They're a bit pricey but if you want definitely better tuning stability then their products are worth every penny. TOMMY G CUSTOM GUITARS