...Recently got a BX 2370 with FEL and back blade.
Yeah showoff, gimme another cheezy grin!
...My question is a bar with traditional type teeth or a Piranha from BXpanded?
Will be doing landscape type work.
Pros and cons.
All kidding aside (trust me! the check is in the mail!), with your horsepower and weight, the traditional bolt-on/weld-on teeth will work for you (assuming you're near THE LAKE, not some other Niagara). I was having trouble digging with my "little" B6100 (roughly 2/3 your weight, almost 1/2 your HP) so I got a Piranha. I love it, but it is not a miracle worker. I've got *lots* of roots, which my hydraulics can't handle. But the Piranha, with it's sharp (and hardened) teeth help a lot... with more weight and more hydraulic pressure, I would be able to dig more than I can now.
Some folk say that the Piranha bar can't be used for landscaping, or that you have to rotate the bucket up and back-drag with the back of the bucket. I've found that the bar, mounted below the bucket, does grab dirt when back-dragging. However, the bottom of the bar is smooth (unlike most tooth additions, which usually protrude below the bottom of the bucket) and I've gotten some pretty satisfactory surfaces with the bar in place. (Again, the caveat, no weight, so no real downward pressure.)
Unfortunately I didn't think to lay out my comments as pros and cons. Sorry. Hopefully you will glean the positive and negative aspects.
In closing, I would say that for landscaping, the Piranha bar or no bar would be a better choice. If your need is more earth-moving, perhaps the traditional tooth would be a good choice.
Now that we have contributed to your knowledge without snidely telling you to do a search for the numerous threads covering this, please do us the courtesy of posting your choices and your results! And as Tomcat and numerous others say every chance they get: "Without pictures, it didn't happen!"