No, those were the aileron flettners mounted on WNF produced 109Gs and Ks (about 8,000 of the total 34,000 bf 109 production). At very high speed they could create control-force reversal, which was very dangerous, so many pilots had them deactivated. The rudder flettners were mounted on all tall-tail 109s (about mid-1944 onward) and worked as they should.
WNF never produced any neubau K-4s. Mttr produced 1593 K-4s tho.
WNF production of neubau Gs was 2660 from Jan '44.
G 6/R2 132
G 6/U4 1466
G 8 112
G 8/R5 915
G 8/U3 1
G 10/U4 356
G 14/U4 593
On the Ubi Il-2 board Kurfurst couldn't produce anything that held up to scrutiny with regards to wide spread installation of aileron Flettners fitted to production 109s.
Pilots complained that the ailerons were too sensitive to control inputs.