Ah you sound pretty well prepared. I did Snowdon last month, up the ranger path and down the llanberis track, it was cloudbound and raining sideways! I'm aiming for 6h30, but nutrition at least I'm trying to get right to avoid cramp. Packed my pack today with lots of layers its pretty heavy. Ah well good luck mate, it'll be awesome
I'm running it as well and it's a bit late to try anything new. I'll be carb loading from Wednesday, with porridge, pasta and energy bars. Race day will be porridge with a banana, with a gel 30 minutes before the off. During the race I'm planning on 6 gels, one every 30 minutes, then 2 or 3 energy bars whilst climbing Snowdon. planning on just liquid on the way down for speed. Like I say though I wouldn't try any of this if you haven't practiced it or you'll end up with either an upset stomach or a massive stitch....
Better advice it to take extra layers, Snowdon Summit forecast for Saturday lunchtime is a balmy zero degrees windchill.
I've done 5 Tough Guys all from front squad both in a short leg wetsuit and normal running gear, one year of madness in a thong. I can tell you what makes all the difference is some kind of thermal headwear.Either a neoprene cap or a couple of layers of swimming caps. Also neoprene gloves to both keep the hand warm ad for protection.
The cold is easy to deal with, but putting your unprotected head multiple times under freezing cold water makes you feel like you have been hit in the head with a shovel.
If you're thinking of wearing a full wetsuit, and think you can run a couple of miles in it I say go for it. Just make sure no one can see it or you'll be abused for however long it takes to get around.
There are loads of other entry routes still open after the general ballot date ,which is why it takes so long to decide how many places they give to the general ballot. Deffered entires, good for age, oversea entries. Deffered entries for examples don't have to be for at least another month. Good for age is even longer, sometime in July.