Pathfinder how do these templates stack?

[Crow_Nightfeath]

So, in the advanced bestiary, there is alacritous, limbjack and quickling. All three of them multiply speed. Alacritous and limbjack both double speed, quickling multiplies it by 4.. so question is a creature with a land speed of 30?
Does he have 30x2x2x4=480ft
Or does he have 30x7=210ft

[grarrrg]

So, in the advanced bestiary, there is alacritous, limbjack and quickling. All three of them multiply speed. Alacritous and limbjack both double speed, quickling multiplies it by 4.. so question is a creature with a land speed of 30?
Does he have 30x2x2x4=480ft
Or does he have 30x7=210ft

Neither.

(assuming the templates can combine, didn't bother to look them up)
"combine them into a single multiplier, with each extra multiple adding 1 less than its value to the first multiple. For example, if you are asked to apply a ×2 multiplier twice, the result would be ×3, not ×4."

Start with the x4, each x2 is actually worth +x1.
x4 + x1 + x1 = x6

I prefer to convert multipliers into percentages, as that's basically what they're doing with the above method.
x4 > 400% > 100%(base value) +300%
x4 is worth +300%
x2 is worth +100%
100%(base) +300% + 100% + 100% = 600% > x6

[Crow_Nightfeath]

Oh sorry my bad, I'm not really used to throwing multipliers together so I was just curious how it work

[ezekielraiden]

Neither.

(assuming the templates can combine, didn't bother to look them up)
"combine them into a single multiplier, with each extra multiple adding 1 less than its value to the first multiple. For example, if you are asked to apply a ×2 multiplier twice, the result would be ×3, not ×4."

Start with the x4, each x2 is actually worth +x1.
x4 + x1 + x1 = x6

I prefer to convert multipliers into percentages, as that's basically what they're doing with the above method.
x4 > 400% > 100%(base value) +300%
x4 is worth +300%
x2 is worth +100%
100%(base) +300% + 100% + 100% = 600% > x6

Except that this only applies to things affecting a d20 roll (emphasis added):

When you are asked to apply more than one multiplier to a roll, the multipliers are not multiplied by one another. Instead, you combine them into a single multiplier, with each extra multiple adding 1 less than its value to the first multiple. For example, if you are asked to apply a ×2 multiplier twice, the result would be ×3, not ×4.

Speed is not a roll, so this rule doesn't apply. Therefore, it would be 30*2*2*4 = 30*16 = 480. And since all three templates are or can be acquired, a single creature really can have all three. Somehow, I doubt that that much speed would actually be worth the +6 CR it gives, unless the base creature had a pretty sizable power already. (I could see a relatively old alacritous limbjack quickling red dragon being pretty scary, but not an alacritous limbjack quickling ogre).

[Luckmann]

Given that *all* those three templates are 3pp material, I doubt there's a way to reach a satisfactory RAW conclusion. You'll have to ask whoever came up with that material.