Jackfruit seedlings

Manfred says...
Yes - don't allow double leaders to develop unless you have a good reason to do so.

If a tree has two main trunks each will have all its branches and leaves on one side and gravity will pull it to that side. With only one leader a tree is balanced and more stable under challenging conditions like high wind or dry periods. There usually isn't any advantage in growth or fruiting, to allow double leaders to develop. Sometimes in a very marginal climate a double leader will give more early growth but you may also eventually regret allowing it.

Doug says...
Thank you both.
As I have two, I will cut one and leave one. All ten will eventually form a cul-de-sac with a large fig at the end, so the double-trunked one will go at the fig end.