2010-08-16, 20:21:28
Or to be more precise: the fixed speed bonus won't stack, but the percentaged one does add to you speed either way. For example, when you have learned Lord of the Sky level 5, your speed won't change when you buy a Speed Boost, since the fixed speed bonus is the same (+75), but when you upgrade the Speed Boost, your speed does increase, because the bigger bonus (the +150) is used.
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