Your thoughts please

I had a similar problem with my Yamaha M60 amp. The spades were too large because the connector were very close together. I ended up using bare wire and / or 'pin' connectors. Sometime I broke the pins if I screwed the plastic down too tight. Great amp, and the main reason I don't use it is because of the speaker cable connectors! That sucks. That's one of the main things I look for in amps now.

You don't need neither spades or bananas. Them only for convenience. For performance use naked wire.

@ Maraknetz: I have often wondered about this: "For performance use naked wire". In other words, the bananas or spades are simply for ease of use? I thought the ends made for a better contact but perhaps you are right.
You have to be careful though, when you say "You don't need neither" it is a double-negative which technically means you are saying that you need both! You don't need EITHER is what you meant to say! (I'm not the grammar police but I thought I should point that out!)