No, the new studs are now proper length, the pic above shows how much thread is engauged in each case, the stock studs are technically not long enough for after market aluminum mags although I'll bet most of us have driven thousands of miles under the same conditions.
Like this,
Seems a shame to cut such a small piece off of a full rocker panel but then I haven't taken the car down to bare metal yet so who knows what other rot I will find it comes back from the dippers.