^^^^ It is what usually happens... this process increases the THC, which causes the sativa-like (energetic mind high) effects... yet the indica-like effects (relaxing couchlock stone) are caused by the CBD, which is not altered by this process.
So, if your weed is a sativa, decarboxilating it will make it stronger. And if it is an indica, it will become more sativa-like.
Anyway, its always worth a try... you all may be surprised with the effects! :thumbsup::stoned::abduct: