I still have no idea how to sum solve. Is this good? Does it suck? I certainly don't know. I had this thing working at 1/2P for a while until I realized the 30 or so extra instructions I needed to make it 1P wasn't gonna hurt my sum as much as the 45 gold and 10 cycles I could almost immediately save with it. 
The entire joke of this solve name is me having no clue what a good sum solve looks like. My first attempt was literally just a sum-optimized version of an early instruction solve attempt, and scored nearly 1200 sum. I called it "Sum Solve?" because it certainly wasn't what you'd typically call a sum solve, but it was the best I had. After I made an actually decent solve for this metric, with a sum just over 500, I instead called it "Sum Solve!", and simply added another ! every time I made a non-trivial improvement. Have fun counting.