Mommies do you advise using sippy cup then straw cup to wean from bottle or straight na to cup?

I started off with diody cup at 9 Mths n were surprised he could handle it well. Then I bought the 360 munchkin cup so as to bring out (won't spill in my bag) it was after all the cups that I went back to straw but I didn't use straw cup but straight to adult straw...I've attached pic of diody cup