User blog comment:Tzasame/Multifusion Log/@comment-5116140-20121205131629

HI Tzasame, one of the hardest parts in formulating the new fusion probability theory is getting the "fusion weights" correct. The fusion weights are not the same as the "probabilities" seen on the Dino Den page, although there is a correlation. It appears each dino has at least 4 fusion weights, one per biome; perhaps more!

1. For your combo we expect:

weight(spino) = weight(dime); although this is not true for many other combos!

2. For your combo we are unsure about the relation between:

weight(proto) and weight(bronto), although it might be 2 to 1. [not supported by data yet]

Will check back soon.