Does anyone have any thoughts or perspective on the pros and cons of buying a crossbow with the plain bow verses a compound set up ( pulleys ) on the bow ? Some say the plain one like the excalibur style is better less parts less chance for problems . others seem to prefer the compound . if two same brand crossbows list the same arrow speed 330 fps , would the only diference be that the compound would be easier to cock ? How much arrow speed should a person be looking for when we buy?