If you've been using it with no problem, don't start worrying now! If your babies were going to have trouble with it they would have had it from the beginning. Use what works for you, you know your babies better than anyone else and why fix something that isn't broke?
__________________ Windy and Lida Rose 
" Be who you are and say what you feel, because those who mind don't matter, and those who matter don't mind." Dr. Seuss |