With SDO, your deeded week has no advantage. The deeded unit number and deeded week determines if you own a 1-52 gold plus or a 1-21ish platinum. If you own a 1-52 gold plus, it doesn't mater what the deeded week is. No gold plus owner has any advantage in reserving a spring break week and in terms of using in II a gold plus is a gold plus SDO regardless whether the deeded week is 1, 10 or 52.
If you own a true platinum which would be determined by the deeded unit number and deeded week then you could only book within the platinum season and you may have a better shot at spring training time but you might get stuck with an early January week depending on what is available when your transfer is complete.