Jabberwocky
Frumious Bandersnatch
It's awesome that you try to look out for your buddies ... you'd be right to worry about them taking big doses of nbome. I had one once (I knew it was 25i so wasn't expecting LSD) and the vasoconstriction was incredibly unpleasant. Thank god I was at a big park with a river and a lot of fresh air, I doubt that my colourful wee apartment would have been an enjoyable setting for all of that. Why are your mates choosing nbomes over LSD? Is it just a cost thing due to nbomes being a bunch cheaper? (sorry mods, I hope that this doesn't count as price talk).
It definitely has nothing to do with cost, I just think my certain circle of friends are more into 'partying' per say and with the increased energy etc that nbomes give them, they prefer it to party on. They're not all idiots and they do know they're taking 25i a lot of them just seem to enjoy it more.
Personally, I hate both LSD and 25i, I've dabbled with LSD a lot and had a few experiences I thought were positive but in hindsight I learnt nothing I didn't already know. I have no great interest to delve deep into the mind, i'm more interested by what is physically around me. I think this may be why my friends take 25i as it seems to have a lot less 'mind fuck staring into space' moments and a lot more running around giggling etc.
As for your question in regards to delving into a full-blown trip I'd highly recommend it. When I first started posting here in 2008 (under a different username) one of my first questions was why do all my friends enjoy LSD but I had wig out and have a bad trip everytime. Advice I was given was that if you sit on that threshold dose or even just above it you don't completely lose yourself, so you're there mentally, but all these insane crazy things are happening around you which causes intense anxiety (something I suffer from badly). I delved in the deepend once (i don't know if any of you remember the ghetto wizards that were around in like maybe 08/09. I had never had more than 1 tab. I had 5 of these ghetto wizards which were fucking GOOD. Long story short, complete ego loss, floated out of my body, explored another universe which felt like weeks, came back down to reality around 12-14 hours later. Probably one of the only trips I would say wasn't bad but it wasn't good either, to me it was just like having a really long lucid dream that was out of my control and extremely bizarre.
If what you have is definitely LSD I highly recommend diving into the deep end and experiencing complete ego loss. 250-300ug would be more than enough. Just make sure your partner stays sober and trip sits for you/keeps you in a positive mood etc. Once you've had your turn then you trip sit for him and once you're both comfortable, do it together.
Just my 2 cents, I fucking hate psychadelics but only because I can't gain anything from them and I envy everyone that can so much haha.