On the one hand, Francis Beckwith says:
"In fact, virtually every Christological heresy in the history of the church is the consequence of someone trying to split the difference."
On the other hand, he also says:
"It [Roman Catholicism] rejects as artificial bifurcations the 'dilemmas' that are the woof and warp of most Protestant theologies: God's sovereignty v. Man's autonomy, faith v. works, Scripture v. tradition, body v. soul, nature v. grace."
Looks like Catholicism is trying to split the difference Scripture and tradition, nature and grace, sovereignty and freedom, &c. But isn't that like...you know...heretical?