Opti's are better than most of Hifonics lines. The newer Lanzar Max amps also look like the new HiFi amps as well. Cosmetically, I dont really see biting a design as a big deal. Id be more worried about internals. But I understand why it would frustrate a company. However, I do have a suggestion....Rather than worry about a now shitty company (outside of Opti) copying heatsink designs, Maxxsonics would be better served ensuring that all the Hifonics amps can actually do rated.
Does CA.com give a shit about copied heatsinks? No. Would they care if all Hifonics amps actually started to do rated like the MBQs? Yes.
Effort can be used in better ways by Maxxsonics