Ok so let's talk Milkshake. When in doubt, look at a food recipe and keep it simple.
4% Strawberry ripe for the texture and body of the strawberry
2% Strawberry Shisha to help the Strawberry Ripe pop
2% Vanilla bean ice cream for the nice start of the ice cream
.5% Dairy/Milk to give the dairy factor and help the ice cream.
.8% Vienna Cream to richen up the vbic and give it extra texture.
Steep 2 weeks. This will hold it's flavor over a long period of time.