nope, tis correct
you'll still get your spinnerblast, bee, lemonblast etc...
here's something similar, this is my way, same principle as yours
bumblebee x fire (normal, pastel, spider, spider pastel x normal, fire)
.......N......F
N.....N......F
P.....P......PF (firefly)
S.....S......SF (spire)
SP...SP....SPF (firebee)