heres a little experiement i want to try and ill post the result next .....

(one head round per preod)
partial_tukey(2/0.0003/0.0005);bartlett_hann;bartlett;punchout_tukey(1/0.0001/0.0001);gauss(0.0001)

(one blackman round per preod)
partial_tukey(2/0.00030.0005);punchout_tukey(1/0.0001/0.0001);blackman;gauss(0.0001)

(two rounds tailing per preod)
partial_tukey(2/0.0003/0.0005);punchout_tukey(1/0.0001/0.0001);kaiser_bessel;gauss(0.0001)

partial_tukey(2/0.0003/0.0005);kaiser_bessel;welch;punchout_tukey(1/0.0001/0.0001);gauss(0.0001)