Looks very HeiHei to me, dropouts are also like a Fat Ti'. Having owned dozens of Ti drames over the years, you have to bare in mind most of the manufactures made frames for both each other and for other top brands, who didn't have their own facility, their was a lot of secrecy going on and many frames had split production between differing makers.
It could well be Answer had some Ti frames made up for them, as BITD, they were one of the "big names"
Some race teams even had their own frames made to order and decaled up with their sponsers names.
A bare scale weight can often tell a lot too, as they varied a lot between makes, some were no lighter than a good steel frame.