Warrior General Games

My CB has a headpiece of +4 speed, +1 stamina, +10% Intercept chance (started with +1 stamina, +2% intercept chance)...

.I just bought a headpiece starting with +3% intercept chance. If I upgrade the +3% piece 4 times will it end up greater than 10% intercept chance?

if so by how much?

and is it worth losing the +1 stamina?

http://goallineblitz.com/game/forum_thread.pl?thread_id=3459708

...