The differences between a sword and a spear is at least as numerous as that between a bow and a xbow. Very likely the differences are greater between sword and spear when it comes to the mastery.
Not really as true as you might think, one of the mayor skills you learn in HEMA(Historical European Martial Arts) is to do both, and the coördination is quite the same. if you are good in handeling a longsword, learning how to fight with a poleaxe requires a completely different way of fighting ofcourse, but reaction time and swingspeed(IRL) is already practiced. On the other hand, shooting a bow and arrow(which I do too IRL) is waaaaaaay different from shooting a crossbow, shooting a crossbow is way easier than shooting a bow and arrow. Though learning to shoot a crossbow is easier than learning any of the other skills in this game. so everyone should have 100 wpf in crossbow!!!
