Frisco-Pyloric Valve 101 Basics (re-post) for Noobs and Pre-Ops

Thank you so much for that description!!  I am 4 weeks out and no one ever described the purpose of the pyloric valve to me. 

I'm a DS patient, but I lurk sometimes here too since we have the same 'plumbing' as far as the stomach goes.  I read your post & although I already knew this about the pyloric valve, I've always wanted to ask about the time of digestion, stomach filling/over-filling, & pyloric function as it relates to protein shakes.  I drink at least 1 per day....and it is about 20 oz of fluid (water, ice & 1/2 & 1/2) that contains 26 grams of protein.  My sleeve is about 5 oz, but I can take down a protein shake in about 20 mins. & do not feel stuffed or full from this....just satisfied  But I do not want to 'hurt' myself either by putting too much into the 'system'.  Do you know how our new stomach/pyloric valve handles protein shakes?