Another thing I have done sometimes with mine was to seat the bullets long so they engrave in the barrel rifling, the thinking says that this should help keep your cases straight, and help reduce runout on your cases. This may not be possible if you plan on using your loads for hunting, as quite often when unloading an unfired round made up this way, the bullet will be pulled out and you can end up with a chamber full of powder.
Many people are concerned about not getting good accuracy when fire forming the cases, I personally have always had very good results, hence the reason that I haven't always seated them long as discribed above, because I rather be out there using them for hunting rather than wasting barrel life.
The AI cases will stretch less than their parent cases, so in theory you shouldn't need to F/L size as often, but I have found my cases shoot slightly better for a 0.001 knock back. Worth trying to see what your rifle/barrel likes best.