Yes, tilting helps.
Like yourselves I was hesitant to add too much fluid to ANY of my Legacy engines especially VisionLine. Consequently, I under delivered in Smoke Fluid and over delivered in Smoke Unit failures. After being educated on Smoke Fluid application by Mike Reagan, I ‘drown’ my smoke units and rewarded with lots of smoke and zero failures. Search YOUTUBE where a guy applies 100 drops of smoke fluid, and talks about evaporation.