DT Swiss Champion spokes on the right side and DT Swiss Competition spokes on the left side?
You mean straight 14 ga right, butted on the left?,
a budget saver: maybe use 14 0n the right 15 on the left, Plain on both sides?
and 15 on the front ..
Have a 20+ year old 36 spoke wheel set built with straight 15 gage spokes ,
and It's been fine..
.. though it's my occasional sport bike now..