Depends on how much time you spend doing those advanced procedures. For me, I average about 10-12 wrvu/hr doing b&b (4 local cases per hour). A stim trial is 7 wrvu per lead... so 14 wrvu. If you book a trial for 1 hr, doesn't make you much vs doing it in 15-30 min.
Like any procedure, if you are fast and have high volume, you will make more.
However, most hospital pain jobs limit your wrvu production to 90%tile. That level of production signals they need to hire another doc usually. This is even written in my contract where there will be more scrutiny and audits at that level/need analysis for another doc.