I have a neo neck seal and latex wrist seals. I went this way because the neck seals were a touch too fragile for my ham fisted attempts at getting the suit on and off. However, on the plus side I have found that the neo neck seal leaks less than the old latex one
The shape of the wrist seals can also affect the 'leakability' of them.The 'bottle' shaped ones seem to leak less.
Hope this helps,
Ben.