Sheiko's Routine #37 is one out of several Sheiko blocks and is a great followup to #29. #37 increases slightly in both volume and intensity compared to #29.
Sheiko's training plans are not meant to be followed blindly. They do not take your weaknesses into account so in order to get the most out of this program you should make it fit your own specific needs. This goes for the assistance work as well as variations of the main lifts.