Not necessarily. My branching hammer is now in a corner all by itself. It has really long sweepers (like 8+ inches) and it was stinging anything it could get in touch with, including other lps. Maybe it was just mine, but I wouldn't rule it out with other lps.
Scott, ours did really well with medium light and medium flow, grew like crazy! I would also try to keep it away from everything else as it can have a fairly powerful sting if I remember correctly.
Yes, I have a torch that has grown rapidly and has killed off a large chunk of GSP and Xenia as well. Have to keep it away from my branching frogspawn too - they reachout and touch each other and it usually doesn't look good.