would not be a good idea as it would diminish his amt. of units able to capture objectives.Land Raiders without Extra Armor are asking for trouble. For a BA list like this, I'm gonna say instead of a 2nd RAS, do a Death Company there, all with PS. You can only do six, but they would certainly have a punch!
DC are Troops, but they cannot capture objectives, IIRC.
Creon does have a valid point about the LR's however, so i'd certainly consider it.
you're relatively well covered on AT at 1K, so why not drop the MM's for extra armor?