Strollers - Plastic moulded tyres

Hi, I am looking for some feedback on those new type plastic moulded solid tyres that never go flat. My concern is that would these tyres cause more vibrations in the stroller as they are solid, especially to the baby's head?? I am concerned about their shock absorption ability while walking on roads or gravel/concrete walkways. On the other hand, I guess the rubber air tyres would absorb the vibrations more effectively because of the hollow nature. Can someone please give me some guidelines. Thank you.

Edited by Sush