Careful Synthesis is truly amazing to have at low levels. I used it exclusively once I hit 15 in weaver. That 1 point of progress you lose isn't really going to matter 98% of the time. After that Manipulation was pretty great. It costs less than Masters Mend, and you can use it whenever you want, so long as you have more than 10 durability (if you use it on 10 dura the next action you use that takes durability will break the item).
I agree that Tricks of the Trade is a strong ability but if it can only be used when conditions are "Poor" then it isn't the best for leveling. Excellent condition doesn't come up often enough to warrant taking it over another ability at low levels. I have a feeling this is more of a "going for HQ" ability that will get much more use later on. I suggest taking Cooking's Hasty Touch over it for level 15+. There are multiple times where I've been forced to finish an item with 20-30 durability left. This would be a great opportunity to spam Hasty touch, especially if you still have Steady Hand stacks up.
Oh, and I must mention Rumination from Carpentry. once you get enough CP to warrant using Inner Quiet it becomes quite strong.. I only used it a couple times when making a staff for my CNJ, but i think it gave me back around 40 CP.
For leveling purposes I suggest a skill order such as this: lvl 1 Careful Synthesis, lvl 10 Manipulation, lvl 15 Hasty Touch, lvl 20 Rumination/TotT/Waste Not. I haven't tried out waste not but it could be a strong ability to have.
FFXI: DamienSlvrblade Race: Elvaan Nation: San d'Oria Server: Sylph 2002-2007, Phoenix 2012
PUP WHM PLD MNK BLU BST SAM WAR BLM 99 BRD THF NIN DNC SMN RDM 50+
FFXIV: Damien Scott Race: Duskwight Elezen GC: Limsa Lominsa Server: Ultros
DoW GLA50 ACN50 PUG50 MAR 50 Rest30+
DoH/DoL All 40+