| Rub-Eta |
There are a lot of duplicating abilities that you don't get any benefits from. In addition:
Also
What you lose out on are 5 levels of Banner, Challange and Order progression. That's quite a lot.
| lemeres |
Not really worth it. You just lose out on so much of the progression seen from sticking to one class and what you get back isn't worth it.
I mean...I would stick out with cavalier until at least level 7 since that gets you chain challenge (and you have the cha for that because of panache). That feat can be a game changer for cavaliers.
But the +1/+1 and improved critical isn't worth that much at level 12, especially when it takes off 5 damage off your challenges improved with chain challenge. And as it has been stated- the gloves don't work. The mechanics are completely different, and it doesn't use weapon groups. So no gloves of dueling.
At the most, i can see the one level dip to grab parry, since it works well with your mechanics. And I would take it at level 8, since otherwise it delays chain challenge for 2 levels.
Heck, it is even advantageous to take a one level dip into a different full BAB class as a cavalier, since their tactician ability is a bit off alignment. You see, one of the best teamwork feats to just randomly give everyone, in my opinion, in coordinated charge. Once that is on everyone, the entire party (minus one attacker) gets pseudo pounce in a round- which can be fantastic. But unfortunately, the prerequisites prevent you from grabbing coordinated charge with your level 9 tactician (it needs +10 BAB). So taking that one level dip could be great for you.