How are things going and are you still using the GAO? Are you happy with your results?
Now in regards to your questions:
I am sorry that you are not enjoying your experience thus far with your senegalese twists.. when you say they are too small are you speaking interm sof the actual size of the twists or the parting? I am currently rocking senegalese twists and I used the xpressions hair. Did they dip in hot water to seal? Give it a few days to see if it grows on you as they are very versatile however, if you don't feel comfortable take them down and have the lady do them over for you if you are happy with how she twists.
In terms of the puffy twists I have used both the Nafy and the Marley hair...you can acheive the style with the Marley but from what I recall the Marley hair will give you a more streamlined twists while the Nafy will give you juicy twists with a nice curl on the bottom. The vendor who I purchase the hair off of is usually very quick in responding and shipping out so long as he has the colour you want in stock.
Let me know what yo decide.