I have the sb acoustics SB29RDNC-C0000-4 ring dome tweeters in my DI's and I haven't compared the 2 tweeters but I seriously doubt any big differences.
Even though neither tweeter is made from exotic materials,they are most definitely always in the sweet spot of very low excursion in this speaker design and I would also say that they sound "Natural" and never fatiguing to my ears like some designs can,and on the detail side of things I do not feel like I'm missing anything and only have gained a more Engaging sound overall.
You mentioned the band "Gov't Mule,I haven't listened to any of their music in awhile and I hope Tidal has them because I misplaced or lost my Cd's when we moved 3 yrs ago.I like them and think they are quite a unique sound.
Kenny.