So, that's how you get oil residue in your TB!

[PlazaEJ]

it may be a PITA, but does it actually work better?

IMHO... NO. You don't have any control over the direction the straw points, and the spray goes.

Actually, I have drilled a hole in my CAI tube, just before the TB. This allows me to control how far in, and the aim of the regular straw. Just thought that if the crankcase vent to the TB had a better airflow, it might make a nice entry point for Sea Foam.