The last thread on cold weather gear has a few misunderstandings that need to be sorted out here.
1) Diving gear 'wet or dry suits' are highly different in composition and flexability than what is designed for kayakers. A Diving dry suit is designed for extremely low temps below water. The same applies to wet suits which at 7mm neoprene cannot allow one to run a functional sailboat such as the AI/TI.
2) As you work your Mirage(s) and sail, you will perspire into your gear. This moisture has to be evaporated or it becomes a hindrance to your ability to run your boat in comfort. No comfort, means your body is wearing itself down due to stress.
3) Any easy entry for very cold water can drain your core quicker than you can spell hypothermia as the heart pumps blood to cover the heat loss at the ankles as soon as you launch with pants that do not have attached socks.Again energy loss.
4) As you work your drive(s) the seal on your ankles will ride up and leave exposed flesh open to heat loss. As most dry suits (and technical paddling jackets [EDITED] are made with built in upper vents, use them to get rid of excess body moisture based on the body's need to replenish itself. Plenty of water is a must. For women, there is a female shaped funnel that can be used to gain the same advantage male crew has if wearing a unisex drysuit to do their biz.
5) The University of Victoria, Canada has done some of the most extreme, groundbreaking research on what the absolute limit is for people subjected to ice baths until they go into the last stages of hypothermia (before death). I strongly suggest you study the amazing sacrifices that these researchers have done to themselves for the sake of human knowledge.
There is no right or wrong way to keep yourself warm. Brand names matter little. What is important that someone at 3:00am does not have to pick off another kayaker off the rocks that was more interested in pushing the limit without due consideration for the laws of nature, that care little what brand of survival gear you wear. More importantly, it's the ability to survive that matters above all.
Respect to you all
Always looking for ways to make good things 'Gooder'