Conventional wisdom is that stock struts will wear quickly when used with stiffer springs. I'm not sure if it is true, but it is the common held belief.
It is also true that struts that have had a lot of use in one centered position may not hold up long when moved to a different ride height.
Many aftermarket struts that are intended for use with lowering springs are made with more toleration for non stock ride height.
Actual use has shown that moving to lowering springs with old struts tends to shorten their life. I don't know how true this is if you have new stock struts with lowering springs, but there seems to be less failures reported when done immediately to a new car.
So, find a dartboard, post each of the possible ways to do it, and throw a dart and see where it hits.
