I used to use the nsi student brush many moons ago which did'ny help me a great deal!!! I then started using a star nails brush ( it think the only do 2 sizes) the largest size and i loved it!!! ithink it cost me around £25 and it really did me proud!!!
Then after converting to creative i started using their prostyler which again is fab ...out of those 2 i probably preferred the star nails brush....because i always worked really well with it!!!
Now i still have the star brush and the prostyler......i no longer use them...i just can't bear to part with them....they got me where i am today!!!
I now use the sculptor brush which is slightly thinner than the afore mentioned and i am totally in love!!! Its fab ....my smiles are so spot on now i will never ever part with that either!!!
I have also tried the grip flexi brush bought via ebay and i have never had so many problems....the brush hairs just were'nt as silky smooth as he other brushs i have used!!! I think that was a size 8!!
Sorry i'm waffling are'nt i!!!