Silicone Dry Suit Neck Seals

[Brand X]

Here are some additional specific questions and information. While I only get out 3 or so weekends with the dry suit per year. Does life or potential failure of Silicone or Latex have to due with age or use? More direct what is the a life expectancy of Silicone VS Latex? If Latex well cared for and low use would be expected to go 7 years, I think that would be the direction I will go. But if it is a crap shoot with failure on either than it seems I would want to go with the expense of the replaceable seal.

On a little different subject anyone have a opinion on cone vs bottle latex wrist seals?

I have always used cones, but changed my suit to bottle but have not used it yet. I want to switch my sons out as they are 7 years old too and buy a back up set. Should I go all in with bottle?