Definetly different......leaves are different shaped and the flowers appear to be on the whiter side for a Trinidad. Probably not a cross but possibly a seed mix up. This could be a good thing, now you'll have an additional variety. You did say you already had a couple of 7's going.
Maybe take a look at Judy's site and see if anything compares or maybe she'll chime in. Post some more photos when more pods come in and these particular ones ripen
Greg