IDEX retraction and flowrate?

I've been trying to tune my machine for a while now, it's now printing pretty good on each toolhead black petg-cf and regular petg in pink, both park benchys look pretty good to me. 0.16mm, 4 Walls, 4 bottom/top layer 5% infill -> 35min

I don't understand why the idex print looks so bad though! Z offset as well as XY offset look good to me and seem to work great,
but it seems that retracion and flowrate are terrible?

No z-hop, no prime tower, no oozing prevention in Slicer. This is my special config, the rest is stock:

variable_toolchange_zhop: 0
variable_toolchange_extrusion: 1.6
variable_toolchange_retraction: 1.6
variable_toolchange_standby_temp: -1
variable_toolchange_first_purge: 15
variable_toolchange_purge: 10
variable_toolchange_prepurging_timer: 200


Any help much appreciated! 🙏🙏🙏
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