Ok I know this has been talked about a billion times on here but I really need to know before my season start. I've heard that the Victorys are lighter and a more aggressive strike but have had some durability issues. On the other hand the Matumbos are a tad heavier and not as aggressive but more durable. All my races are on grass only courses (so no trail or rocks). I do race competitively and and am looking for a spike to best help me. Any reply is very appreciated!