Problrm with spade and my amp......?

I have two questions.....My new ASL Hurricanes (still breaking in) have different speaker lugs in the back then my ARC VT 100. Right now I have one set of speakers connected to the post of the amp via the spades sitting around the post but spread out a bit. The other mono amp, I just have one side of the spade connected into the the hole of the post and not around the post. Will that make a difference or degrade the sound???

My second question is....without doing anything on the Hurricane speaker post, does anyone sell larger, better, adjustable spade's for my speaker cables (Acoustic Zen) where I can easily fit the old ones into the newer ones the then into the amps????