I'm wondering here: What would be the difference betweentwo bows, say both are Mathews Switchback XT's; wherebow #1 was a 60/70 lb.backed off to 60 lbs.- and the other identical bow was a 50/60 lb. turned up to 60 lbs. Would the bow that was cranked up to 60 lbs. be faster? And would the bow cranked down to 60 lbs. be smoother? Or could you even tell the difference?