For some people, the trap bar DL helps their conventional DL start.
Zercher is an ab builder for most people more than anything else, so I think how you handle sets/reps is going to depend on what else you do, but if it's a minimalist program, then the usual guidance probably applies, a relatively low volume, spread out, for skill improvement, and fewer sessions, higher reps and/or more sets, for gaining size. I don't think many people can hold enough weight in their elbows to do a lot of heavy Zerchers.
-S-
Zercher is an ab builder for most people more than anything else, so I think how you handle sets/reps is going to depend on what else you do, but if it's a minimalist program, then the usual guidance probably applies, a relatively low volume, spread out, for skill improvement, and fewer sessions, higher reps and/or more sets, for gaining size. I don't think many people can hold enough weight in their elbows to do a lot of heavy Zerchers.
-S-