I used the site linked at the bottom to start mine yesterday. but remember there are new gear for your feet, hands, pants & off hand tool.
So I would start with your jewelry as the gear stayed the same. At least until people figure out the new best melds with the new gear.

Also you can only meld 5 materia total to an item.
What I did for my Aetheryte Rings was meld in this order +4 craft / +2 control / +2 control / +2 cp / +1 cp
The max is +4 craft / +4 control / + 3cp that used up all materia slots but ended up being a lot cheaper for me then the optimum meld of +4 control / +4 craft / +3 cp
Because +4 control on my server cost over 500k for just one materia
but I was able to do both rings & half of my wrist for about 500k


http://www.ffxivguild.com/ff14-arr-d...materia-melds/