Right, my drysuit arrived this morning with a new neoprene neck seal fitted (and smelling nicely of glue

).
I've never used a neoprene neck seal before so was wondering how I 'work' it? Latex you plop on, look for kinks and done. The neoprene seal seems fairly loose. I've tucked the seal back on itself but it's still relatively easy to get my finger down the front of the seal.
Am I doing something wrong? (Fairly urgent as I'm diving this weekend

).
Cheers, Lloyd.