Kerpal

1) I've found that Dedicated blow can be more useful in 1v1 situations, especially when you are strong enough to one hit enemies with this skill. Battle Extension seems to go off a bit faster in the Mobiculum, and it looks way cooler than if used on foot, but there's no real change in damage. Extension is good for using on a group of weaker enemies, killing them off in groups of 3 at a time or by using it on a single enemy (IF you have Life Leech, you will leech 3 times from this attack). Keep in mind that Dedicated is more useful in the early game. 2: Constitution isn't exactly manditory if you have Warding Energy Lore (Which reduces incoming damage from 60%-99% based on boni) but having both seems to be staple for highly defensive TG builds. I'm not sure about the exact numbers, but Constitution won't really become amazing until level 75. I would highly suggesting getting one of the two however, you won't last long. 3: Yes, they drop in 15, 30, 45, 60, etc sets. The reasoning behind this is that it allows you to get upgraded models of sets that would have otherwise been outshone by normal, higher level pieces of equipment. Also, if you haven't considered it already, Deathly Spears is a very nice skill for the DG path. Until about level 20 with the Jab mod, it won't become powerful, but when it does it really improves your combat abilities.

I'm interested in seeing how you set up your build. I have a LF TG and he seems to do okay, but I haven't taken him past silver strictly because I thought he would be gimped later.