somewhat unstable while touring and when Ibanez communicated a desire to try building them 8-string guitars they accepted the offer. Marten Hagstrom got his custom 8 string to be modded to accommodate some arthritis issues to his shoulder. His new custom Ibanez M8M is 28" scale length with semi-hollow body facilitated easy stage performance and studio recording. He also got a production model 27" scale guitar (Ibanez Iron Label ARZIR28 8 String) for the other half of the stage time. Guitar Strings:DR Strings, Tite-Fit, LH-9 "Lite & Heavy" set: [.009 – .011 – .016 – .026 – .036 – .046], .052, .070 (stock gauges on the Ibanez M8M signature guitar) DR Strings, Tite-Fit, TF8-10 "8 String Medium" set: .010 – .013 – .017 – .026 – .036 – .046 – .056 – .075 Guitar Picks:Jim Dunlop 1mm Nylon Standard Amplifiers and effects Fortin Amplifiers "Meshuggah" custom amplifier heads Fractal Audio Axe-Fx Ultra (as of the obZen tour) Line 6 Vetta II Head Units T.C. Electronic effects Mesa Boogie .50 Calibre (None era) Mesa Boogie Dual Rectifier (Destroy Erase Improve and Chaosphere era) Line 6 Pod Pro (Nothing, I and Catch Thirtythree era) References External links Meshuggah official website Meshuggah at Nuclear Blast Europe Meshuggah at Nuclear Blast USA Living people Swedish heavy metal guitarists Meshuggah members Avant-garde guitarists Eight-string guitarists Seven-string guitarists People from Örnsköldsvik Municipality Rhythm guitarists 1971 births Progressive metal guitarists Swedish experimental musicians