Re: X-bow string hight
No, the chances of them having the same trajectory and point of impact are nearly zero. Even the identical arrow with identical head weights will almost always have a SIGNIFICANTLY different trajectory and point of impact when you switch from a field point to a broadhead. The blades of the broadhead alter the aerodynamic profile, causing altered flight characteristics (frequently including a loss of accuracy in addition to the change in point of impact).
You have to practice with what you hunt with, right down to the last detail.
"...the truth will make you free." John 8:32