Yesterday I took 100mg of MDMA 10 minutes before 60mg of Ketamine (nasal spray). At T +0:10 and T +0:20 I took another 60mg of Ketamine. Also at T 0:00 I vaped some outdoor weed. At T +1:00 and T +2:00 another 60mg, and another session of vaping outdoor weed. At T +3:00 I took the last 60mg of Ketamine. So in the entire evening I took 100mg of MDMA and 360mg Ketamine (nasal spray).
I doubt there is anything risky about this dosage (unless you foolishly walk around, instead of merging with your sofa). Didn't have a MDMA comedown. And on the next day I just feel relaxed and cozy.
I already tried this method 2 weeks before, without MDMA. It's basically part of a series of experiments, to figure out how to use Ketamine properly for me. The 180mg in the beginning work well to get to the "right level". The 60mg Ketamine at T +1:00 and T +2:00 work well to increase the duration spent in the "special place". No K-hole though. The 60mg at T +3:00 may have been unnecessary... But it didn't hurt.