I just got the TDI and if you think that TDI/FirstSamco isn't capable of precision, then you HAVE to see this piece. Everyedge on every rail is sharp as a knife, perfect dimensions, it's as light as it can be, VERY impressed. Gonna install it on my SAM 5 or Saiga 308 16" (haven't decided yet).
If you want to compete with this piece, the only thing I can think of would be an AR type quad rail that free floats the AK barral, gas tube. I can't figure out how to do it without attachment to the rear sight base, but you do hae a nice ledge under teh front receiver, and devising some kind of clamp system for the sight base could be enough to stabalize. PRoblem is who knows the variations in dimensions between all the AK sight bases out there. Maybe teh upper stabalizing point could be the area where teh AK sight was (it should come off if you're gonna bother Free loating the damn thing!)
But I do believe that's teh only untapped market in teh AK handguard rail area. Once the quad rail is on, itwould be a simple matter to pop on a longer rearward rail on top.