But...if you are a purest, then you dont need expo, endpoints, mixing etc. You should be precise in your building too and be able to adjust that out on the work bench.
We had this debate when adjustable stabs came into being, and people complained it wasn't fair that you could adjust a set screw and dial out a planes bad habits, and when they started allowing in-flight mixture control to your needle valve, that it gave you an unfair advantage, that you should set your needle on the ground and be stuck with whatever you had in the air.
Like it or not my friend, times are changing. After all, you either fly with AMA, or your part 107 now, no more rogue piloting whenever and where ever, and as those times have changed, so too should pattern.
As for me, I still refuse to fly electric pattern. I fly SPA, and enjoy it a lot better. I feel electrics have too much control. I wanna see you try be smooth as a baby's butt doing 120mph, doing turnarounds, retracts and all that, oh and land at 60mph and keep it on the centerline, wind or no wind.