I should point out first that the following experience occurred in a country where the consumption of 5-meo is legal. I have tried not to wax lyrical about the deeper meaning of the experience, just give the details of what happened in a more or less scientific manner.
I had never really considered this as a ROA but I had a bad cold and sore throat and I didn't fancy vaping anything which might make my throat more uncomfortable. I measured out 5 mg of 5-meo using an accurate milligram scale and added 1 ml of warm water from a syringe and stirred. Once it was dissolved, I sucked the resultant solution back into the syringe. I lay on the bed face down, administered it and lay in that position for about two minutes. There was almost no effect at that point and I generally expected that there it would be none (especially after reading a report on here of someone plugging much, much larger doses with no effect).
I waited another 2 minutes and started to feel the unmistakable onset of a 5-meo experience. However the onset was much gentler than when vaped, just a gradual easing into it. Over the next 2 minutes the experience came on considerably stronger. At that point I would compare the overall effect as similar to when I have vaped 10-11 mg. The relatively slow build up, I felt, gave me more time to surrender to what was happening and reassure myself that the place I was entering was wholly natural and not to be fought in any way.
I have no idea about the following minutes but for the whiteness and singularity of the experience, a true knowing of what is. As I came out of it I opened my eyes and saw a small spider making its way across the ceiling. I felt the return of some of the physical and mental discomfort I had had before taking the substance. With sweeping hand gestures I tried to free my head and body of these. Another 2 minutes later and I was pretty back to normal. I saw from the clock that the whiteout part of the experience had lasted around 12 minutes, maybe a little less. I lay there for another few minutes and then had no problem getting up and carrying out a few basic tasks.
I will really consider this ROA as a possibility in the future. The slow onset does give some possible advantages over the incredibly fast onset that's usual with vaping. There was a nice handover from intellectual, ego based concern to surrender to ego loss that sort of gets bypassed when the transition happens in just 15 or 20 seconds.