I have published subsets of the male catsuit pattern for shorts (including boxer briefs, and cycle shorts), and leggings. These use the same measurement system as the catsuit pattern and should be a good way to resolve measurement issues, focussing on specific parts of the pattern.

my-pattern.cloud now supports variations for patterns. Where defined, these can currently be found on the ‘Pieces’ tab though they may soon have their own tab. These allow multiple pattern variations to be supported by one pattern, with customisations of variables.

If there is an interest, I will also publish variations for t-shirt, leggings-with-feet and socks. Please send me a comment if this would be useful.
These patterns can be accessed from https://my-pattern.cloud/ having joined my group.