Making better sense of the Mutation process
When picking a mutant race, write down only the Stock Mutations to begin with.
You will be randomly rolling all other Mutations and Defects.
If you roll a 91 - 100 on Table 1-3, roll again for Random Stock Mutations on Table 1-2.
In fact, that entry on Table 1-3 should read Random Stock Mutation.
If you roll a 91 - 100 on Table 1-4, write down the Stock Defect from Table 1-2.
This allows all Clickies to have an Exoskeleton, Hairies to have Fur, and Scalies to have Scales.
It doesn't doom all mutated humans to be Smaller, Clickies to have Crude Hands, or Scalies to have Poor Respiratory Systems. It just makes those defects to be the MOST LIKELY drawback to being what they are.
Modified Mutations
Pincers
Mutant has pincers in place of its hands. Two natural weapon... Having the Pincer mutation automatically bestows the Crude Hands defect on the mutant.
Tentacles
Mutant has tentacles in place of its normal set of arms. Improved grab with... Having the Tentacles mutation automatically bestows the Crude Hands defect on the mutant.
New Mutation
Improved Tentacles
Mutant has tentacles in place of its normal set of arms. The tentacles each end with a normal humanoid shaped hand. Improved grab with natural weapons. See Monster Manual.
Feat: +1 on grapple checks, repeatable
Value: 4