When Jeff Beck’s first signature guitar hit the streets a de. … he’d like in his original signature Strat, apart from the big neck Jeff asked … The thick rosewood board, 9.5-inch radius and meaty frets make for blues-rock heaven.Guitar Blog for Strat Players | Stratoblogster: Fender Strat Neck Shape … Radius &dimensions specs illustrated … The STRATosphere (large selection of new Fendernecks & bodies, including EJ Strat & Jeff Beck model components).