Number of trusses?

Its 2 stemmed because I missed an armpit while it was waiting to be transplanted and it developed fruit, so like a numpty I let it grow on. Now it has two growing stems both with trusses. It's an oxheart so don't expect huge number of trusses but just wondered if it would benefit from me stopping one stem and letting the other have all the energy. I'm not hugely bothered either way, I expect in the end it will make it's own mind up.