[Sci-Fi]

Just FYI:

NXT is Meguiar's latest synthetic wax/sealant. NXT is still too new is get actual reports of its durability, but one would suspect it is more than 30 days. Meguiar's #7 is their Show Car Glaze, which is used more for a car show than a daily driver. Try Meguiar's #16 Paste Wax instead of #7.

Meguiar's Final Inspection is a good, body shop safe, quick detailer. Meguiar's Final Detail (not body shop safe and available only at auto body supply stores) has been growing in popularity and leaves your paint very slick.

Since you are located in Hawaii, contact Ranney aka Pakshak, http://pakshak.com/ , and try Poorboy's EX-P Sealant or ClearKote's Vanilla Moose, Carnuaba, and Quik Shine (water based quick detailer that also leaves your paint very slick and is body shop safe). Ranney also carries top quality microfiber towels at reasonable prices.

As far as water spotting, there's nothing you can do about preventing them, if it's a daily sprinkler thing and you can't park anywhere else or don't have a good car cover (WeatherShield® for example). Try removing them asap by using your quick detailer (Final Inspection, etc) or by washing your car. If you still have water spots then try a claybar and if necessary, a 50/50 mix (or stronger=more vinegar) of White Vinegar and Distilled water (good for cleaning your windows too). A good paint cleanser will also remove any water spotting (my favorite is S100 Shine Enhancing Cleanser, available at most motorcycle dealer/shops, like Harley Davidson). The key thing is not to let the water spots set too long before removing them. The minerals in the water will eventually etch your paint and any more water drying in the same spot will expand the damage.

Hope this helps