Blastoid, are you reading the same BIK 116.8 as me? I think BIK has mentioned much the same as you. The CDTI picture demonstrates the capability of technology to evolve to cope with both TCAS and ADSB should a number of aircraft in the future elect to install ADSB. Maybe I'm interpreting text incorrectly, but I got the impression BIK 116.8 and is supporting your argument.