Single or Multi Testcases

Hi Jazz forum,

I am writing to you because we have a topic ongoing about how to handle our requirement (all our req. is in DOORS), witch happen to involve multi product – you can say that our requirement is generic, like “Req.01: The System shall support firmware upgrade”. And this requirement is valid for 3 difference product (Product A,B,C).
Today we are using Environments, to maintain e.g Product A,B and C.

I am very beaver of how RQM is working, according to multi Test cases, Test script and Environments.

Today I have choose to use this setup in RQM:
1) One generic Test cases (incl. 1 x Test script pr. TC), controlled in multi Environments (one Environment for each product A,B and C)

But we are also talking about this setup in RQM, (for the same type of requirement)
2) Multi specific Test cases, like a Test case for each product – 3 x Test cases (incl. 1 Test script pr. TC).

I am a little sceptic about using option 2), in order to be able to see the individual status for this Requirement in 3 deference Test Plane, due to a “Blocked” result from one Test case (Product A) will also be see in all 3 Test Planes.

Any comment on this (complex question), is appreciated.
Thanks.