I really like 155gr SWC over a load just under max of Unique in my M&P40.
I had leading with mid-book loads under 180g hardcast, but my gun really liked the 155gr--both for minimal leading, and consistent POA/POI with jacketed 180gr loads.
I'm told that Titegroup is a lot cleaner powder, but I haven't found any book loads for it with lead. It is my go-to powder for jacketed pistol loads, though.