I will play with original tactic too but when playing R.Madrid away (or tough away CL games) I drop mentality to balanced and set the WBs to support and 1 DM to defend
I tried the 4312 181 goal tactic with Aston Villa first season. Not quite 181 goals but 132 goals with Villa is pretty good. Ended up winning league with 96 points and winning the Europa Conference League too.