I have the boss waza bass cans. Its a joy to use — not being restricted by cables. Sound quality is great and it enabled me to relearn a loooonnng setlist after the extended lockdown/social distancing break. It isn't cheap but I consider it a worthwhile investment. My way of using it is to take live/rehearsal recordings of the band and remove my bass using RipX. I put these bassless tracks into a playlist on my iPhone and play along using the Waza Air.
I 've tried various sets and use D'addario ECB81M Chromes on my three JMJs (and my other mustangs). I used to use TI JF324 on my CIJ mustang and can confirm that they will fit the JMJ without any issues and they will be lower tension than the Fenders or Chromes..
Nice! I used to gig a Mag 300 head with 210 & 115 deep cabs, so this brings back fond memories. I went to lightweight gear for a while, but I'm using Ashdown again, but this time ABM600 EVO IV & 210 + 115 ABM cabs
I have JMJ, vintera, CiJ & Classic Vibe mustangs and I have found that the pickguard is different for each model, so you might want to add which model this pickguard is for.
Isn't the barb just a right angle bend thats been snipped right after the bend, something that would have been done when fitting the strings, and is recommended when fitting roundcores to prevent the core disappearing up inside the windings as unlike hex cores there are no corners for the windings to bite into.