SST40 is not a 100% thrower. It’s a big emitter that pushes a lot of lumens with a good balance between throw and spill. It’s nowhere near Osram which is a pure thrower you’re looking for.
Altough I don’t think pushing the CULPM1.TG to 8A makes sense. It was tested by ‘djozz’ and he found out that it maxed out at 7,5A (it started loosing output after that point). Scroll down to about a quarter of the page: