I'll add my 2 cents I have been useing BSI (Bob Smith Industries ) for years now & while i have tried other CAs I keep going back to the BSI. What i like about it the most are the bottles with the long neck & cap. I have even poured other CA into the BSI bottles because i cant get used to building with out the BSI tip. I personally didnt see any difference glue wise it was strictly the bottle i like!! Hope BSI never changes their bottles....Gene