OP: dunno if you noticed it or not, but IQ52 posted a likely solution for your 911 springs on the first page...new locks and you can run those springs...instead of having to buy new springs...locks are cheap by comparison and you'd get to keep your new fresh better than stock springs.
Although, if you hadn't purchased the springs yet, crackedback's solution above would work well too.
here it is...
...and this :)
