Hey, I was banned for being underage but I recently turned 18 so I'm back

. My friend SWIM is still on a quest to breakthrough on salvia and experience a complete detachment from reality some describe. Recently SWIM bought some 15x salvia and him and a few friends took some later that nite.
[First swim would like to share his exp]
SWIM tripped 3 times but there were only minor changes to reality. The most interesting of these was when SWIM was in two places at once. His visual senses told him he was in one area but his other senses told him he was lying down somewhere. SWIM shouted at his friends demanding they tell him where he was. SWIM also experienced some closed eye visuals and ofc lots of gravity distortions. Strangely though jumping was unaffected. Walking and everything else was really heavy and SWIM could feel an energy sweep over him as others came close to him.
[friends exp, bad trip]
Ok, One of SWIMs friends tried Sally that nite for the first time, He wasnt with SWIMs other friends the time they tried 10x so his first time taking Sally was on 15x. SWIM and his friends thought it would be ok to give him 15x salvia cause he was the same age and of similar build to them and they had all taken the 15x previously and not tripped into outer space.
SWIMs unexperienced friend took a large hit of the sally and immediately after exhaling said "I don't want to do this anymore". His expression was of pure terror, SWIM has never see anyone react so badly. SWIM reassured him with the methods that he read on the internet, told him he just smoked some sally, told him SWIMs name, told him it will be over soon.
A few minutes in SWIMs friend got the giggles but he said he was still scared and wanted it to stop. There was nothing SWIM could do but watch on and make sure he didnt hurt himself. He stood up and walked around, SWIM allowed this but followed him closely. He fell over but it was onto carpet. Eventually when he sobered up he said it felt like he was being sucked through a blackhole and that the whole room turned into a perfect sphere.
SWIMs friend says he will now never take any drugs ever again (although he said this while drinking a beer). SWIMs other friends and himself are still psyched on Sally but are afraid that after witnessing a bad trip they will be more ilikely to experience one themselfs.
On the other hand SWIM thinks that maybe his friend just didnt expect a "legal high" to be so potent despite SWIMs warnings. SWIM himself has experienced intense gravity before and enjoyed playing with it. So perhaps it was just that SWIMs friend wasnt ready to take Sally.
SWIM really wants to continue exploring Sally but dosnt want to have an event which leaves him never wanting to take it again. SWIM asks if anyone has experienced a bad trip before and been able to dismiss it as just a fabrication of the mind and been able to continue using it.
Also SWIM would like to hear if anyone has experienced being in two places at once and what they thought of it.