Like Ritalin better than Concerta | ADHD Information

I am a recently diagnosed adult and am currently on Concerta.  Just increased from 27 to 54.  Before Concerta, I was on Ritalin (generic) 10mg in morning and 10 in the afternoon.    I wanted something that would last longer and without the headache (if I didn't take the afternoon dosage), so my doc changed me to the Concerta.    Maybe I'm crazy but I think I actually do better on the Ritalin.   It seems to work quicker and better for me.  Maybe I just think it works quicker because the Concerta is a time released med and it releases slower.   I also like the "side effects" of Ritalin better.   I was never hungry and was very thirsty - so I didn't have problems drinking 64 oz of water every day.    Also on Concerta, I am not able to "fiddle" with the dosage.  I can't cut it in 1/2 if I'm only working 1/2 day.   Is it just me???