In the same sense, you may need to change pricing based on the options/values you have assigned. We can only choose one variable to increase price by, so in this case you may have to go increase the cost of garments manually.
Example: A large shirt costs $100. A Large-Tall shirt costs $110. The issue is that this combination will not have received its price increase because we are adjusting price by size, not fit. This means you would need to manually add the $10 charge for price increase to bring the Large-Tall to $110.