WHAT SIZE SLEEVE IS BEST?

What does the f stand for in 36f?

I think the F is for French.

Here is a link to an abstract of a recent study that showed no significant difference at 6 months between a 40F and a 60F bougie. 

http://www.ncbi.nlm.nih.gov/pubmed/18656834?ordinalpos=1&itool=EntrezSystem2.PEntrez.Pubmed.Pubmed_ResultsPanel.Pubmed_DiscoveryPanel.Pubmed_Discovery_RA&linkpos=1&log$=relatedarticles&logdbfrom=pubmed

I am not too big on studies but actually that recent on goes out to a year and says no significant difference. Very good reference. Thank you!

I know someone that had her stomach made very small and had severe refux to the point of having the enamel removed from her teeth from so much acid.  She had a good surgeon but just ended up her stomach was too small.  She revisioned to an RnY to get rid of the acid reflux.