Yes, I've been checking the max block_num against the head_block_number throughout the day, and for the past 24 hours it seems to be keeping up well with about a 20 block lag which seems reasonable.

As a test I reverted back to the high memory settings (line 38 of your high memory script) to see if steem_mysql would keep stopping like it was doing before, and so far it has been working well for the past hour, and I plan to continue testing it out tomorrow to see if I need to do any restarts. I'm thinking that the high memory settings may only run into issues when it is way way behind on the block_num because maybe the high memory mysql settings cause the system to try and catch up too fast. It will be interesting to see if steem_mysql has any stops tomorrow.