Thunder Spear is rendered useless, and so is Cold Beam if you approach 3rd job, ESPECIALLY 4th job. After Magic Booster, it's highly recommended to increase Amp. for the extra damage and quicker leveling. There's also usually 1 point added into Seal during 8x so that Mages can begin to Goby.
For the 2nd job build, Cold Beam is optional. Also, maxing out Lightning straight after Cold Beam is critical on the mesos and pots. If You want to CPQ effectively, go Lightning first to take down the mobs. Most builds are either Cold Beam, followed by a few points in Mp Eater and maxing out Meditation. Otherwise it's Max Lightning first, followed by a few Mp Eater, Max Meditation, and Cold Beam if you want it still.
For the 1st job build, it is highly not recommended to follow it unless you're funded. Once again, that build will quickly burn mesos due to the lack of MP recovery.
Partial resistance is a waste if you're going to have TS. Most builds only put 1 point into it unless you choose to skip TS. Seal>
PR. Skipping TS allows you to max both Seal and
PR which most people are doing nowadays.