Bah! Half the fun of designing custom mechs is mixing the stuff up to see what you can come up with.

For one of my papers in Technical Report Writing in college I did a comparison of 3 BattleMechs, my Prof was speechless 'cause it was so out of the ordinary, but gave me an A- 'cause of two punctuation errors. He has a PhD in English and is a pulitzer prize winner - so a real stickler for that stuff.