Yes it would, but make sure your proposals in your position statement don't contradict the proposals in your final statement
Assume you also put the proposals for the final order in your final/witness statement? The other thing you could do is take a draft order to court with you, set out with everything you want on it. It could be used for negotiation and amended on the day as to which bits are agreed or not agreed and would then be evidence of what was agreed on the day (including the wording used) and a template for the final order.