That's like comparing a Mustang GT to a Lamborghini Diablo. Yes, both are quite capable, but the Weeks is a few generations beyond the Pitts Special. It doesn't matter what scale you're talking about. A correctly (accurately) designed and built Weeks will blow the cabane off of the Pitts Special. If you like the Pitts line then look at the Pitts Challenger II. Sean Tucker and Jim Leroy fly modified Challengers (in full scale) to the edge of insanity and back. It may be a better match for the weeks.

Just an opinion guys...