Surely it's best to put your weight forward making sure you're within the limits so you don't fall over, if you're in the position where you're going to chuck yourself over the front then you're really not that good at handling your bike.
When I was getting in the habit of skip stopping I remember I was slowing coming up to a side road (just incase someone was to pull out) someone did pull out, and as I was lifting my rear wheel off the ground I instinctively pulled the front brake, meaning my rear wheel came much more of the ground than i'd intended, but I didn't go over the handlebars, I realised what i'd done and let go of the brake.
I don't think that means I have super reflexes, I think the majority of people who ride should be able to do that, it's a complete mystery to me how people can throw themselves over the bars by braking.
"You can get the rear wheel to help you stop. More weight on rear wheel, more normal force and thus more friction and ultimately quicker stopping."
I don't get this bit, if you're talking about friction in braking, then it's much easier to get more friction from the front, which is why a front brake only will stop quicker than a rear brake only.
As a lot have said already, use the rear for controlling speed, and the front for stopping.
But yes, always 2 brakes on an SS.
When I said chuck yourself over the front I wasnt being literal.
However
Think about it.
When braking hard with both brakes,
The front brake in always so strong so the bike wants to rotate over the front wheel thus creating an endo and the back brake is likely to lock up because it loses grip due to having little/no weight there.
You are also moving forward and as the bike decellerates you are moving faster and your arms are going to be taking most of this force and this gets transferred to the front wheel and increases friction between the tyre and the road. (If you have a mountain bike with suspension you can see this happen, brake really hard while riding at walking pace while just sitting on the bike and the front forks will compress).
Sticking your arse over the back wheel doesn't remove this force from the front wheel, because the force is transferred via the handle bars.
When I said chuck yourself over the front I wasnt being literal.
However
Think about it.
When braking hard with both brakes,
The front brake in always so strong so the bike wants to rotate over the front wheel thus creating an endo and the back brake is likely to lock up because it loses grip due to having little/no weight there.
You are also moving forward and as the bike decellerates you are moving faster and your arms are going to be taking most of this force and this gets transferred to the front wheel and increases friction between the tyre and the road. (If you have a mountain bike with suspension you can see this happen, brake really hard while riding at walking pace while just sitting on the bike and the front forks will compress).
Sticking your arse over the back wheel doesn't remove this force from the front wheel, because the force is transferred via the handle bars.