There are some limits in your stance options depending on your situation. The difference comes in the width of the insert spacing (the holes on your wakeboard) and the plate on the boot.
Wakeboards can come in 6″ 7″ or 8″ spacing patterns. The boots from that year in that brand will match perfectly and give you the most available boot positions. If you mix years or brands, the boots are still compatible with boards, but you may need an adapter to get the furthest stance out.
NOTE: Check the threads on the bolts/fasteners/thumb screws you are using as the hardware required may be different. 99% of the time you are going to get fasteners with your boots that are 1/4″. The two you will find that are different are Liquid Force’s Metric Fasteners (M6) and Hyperlite’s Strata Mounting System. Never force a fastener into a wakeboard, and always make sure you are not using a bolt that is too long, you may puncture right through the bottom of your wakeboard!