Note, I haven't held the P227, but changing to a P226 may not be the answer to controlling the P227. Is it the grip dimensions or the .45ACP caliber? The P226 has many models and each model could feel a bit different.
Also, the trigger types available are complicate matters, too. I may have missed an option, but there are:
DA/SA
DAK
short trigger
standard trigger
SRT (short reset trigger) mechanism
E2 grips
regular/standard grips of various designs/material
9mm, .40, or .357SIG.
But all this may not mean a person will be able to control the P226 any better than a P227. Let's not forget there are several other SIG models available.
Then the question could also be, "Why even SIG, at all?".
With time, technique, and a few thousand rounds of shooting, that P227 may begin to feel great. I hate to see a good gun turned over if not given a good chance.