I'd personally go for it, unless you are completely anal about all three rods having to match (as a lot of us are lol!!)?
Only you know the different tc, the fish won't have a clue...
Plus, as you say, there is always the ability to throw one bait out a bit further than the other, but I personally don't think there will be that much of a difference between the two test curves.
Be different if two were 2.25 and the other was 3.25....