Edit: Load of crap here, because I didn't read correct.
The cigarette slim is a different cut. Higher rise, somewhat straight slim cut. The XX-013 is a slim tapered cut. Lower rise opposed to the XX-015 and a taper from knee down.
A soak or wash will get everything back into "when new" status, might be that there will be some residual shrinkage, but don't expect much (this due to the industrial laundering process).
So the only way to make the hems smaller, is indeed to...