The rectifier diode (D1) should be a fast low
capacitance switching type with low reverse leakage at
the working voltage. It should also have a peak current
rating above the peak coil current and a continuous
current rating higher than the maximum output load
current. Small schottky diodes such as the BAT54 are
suitable for use with the ZXLB1600 and this diode will
give good all round performance over the output
voltage and current range.
I dont really see anything about that should be ok i assume... Ill try it and also make a PAD for the BAT54S so when it arrive i can simply cut 3 traces and use the single pad