DISCLAIMER :
Meth is a slippery slope honestly.
At the beginning it's all good and you may not even feel the addiction.
However, overconfidence may result in dangerous choices such as increased dosage, psychosis and seizures.
I'd say snort a certain amount of meth (probably what gets you high for the period of time you want, as earlier mentioned) and let it be.
It's very easy to keep snorting towards the end and this might lead to a loss in appetite and a definite insomnia, among other things.
As for which will get you higher - it's not about the lager qty but the optimum. If your nasal passage is saturated, you may not feel the high. The rest will probably drip down.
Ideally, according to me (from unnecessarily extensive experience, haha) :
Heavy line (not all of it, just a relatively larger amount) - lasts long, hard crash, lesser frequency could keep the addiction at bay. Great for maybe an intense study session, an all nighter or just to stay awake for a long time. Also burns like a bitch
Smaller lines - may have an urge to redose which could lead to a whole other story. Manageable crash, but loss of appetite and sleep may still be there (allthough multiple reports are there on how this isn't the case, many in this forum itself!). HEAVY binge potential.
Either of the two : make sure it's crushed as fine as possible! Ive noticed a slower snort is much better compared to a fast, aggressive one. Snorting too much at once can cause you to become too jittery too.
Personally I'd suggest a med - heavy line if done recreationally. If sleep or appetite is an issue, try earlier and smaller doses
Can't speak for appetite (I loose it almost completely) but sleep is sometimes easy to manage. I just lie down with my music of choice and ultimately atleast rest a while.
I apologize for the lack of measurements, but I can tell you this - doing smaller lines, about 0.4 g lasts me about 2 days while heavier lines which with a lower frequency sometimes lasts a week (based on daily dosage)
Comedown is made better with eating good food and just chilling or a downer or good old Mary Jane!
No matter the situation, remember to stay hydrated!
Stay safe and don't tweak out ?
(if you do I find a nice shower and some chill music does the trick)