I agree with other members that the dose is a personal thing. There are many factors that choose the correct dose for you.
Sounds like the 100mG then 50mG might be the way to go if your last experience on 100mG was good and 200mG not so good.
in my opinion 200mG is too much anyway. 150mG for true HR should be the limit really.
If you make some efforts at preloading this can also make the dose more effective.
I always liked this guide but theres also loads of info here on bluelight about this
http://www.rollinballzcrew.com/preload.shtml
Its a bit of a debated topic but there are many arguments to suggest if you pre load in an educated and informed way then you actually require less MDMA to reach the same peak.
Regardless of if preloading will enhance the role its a great thing to do as it has many health benefits.
True HR is the less dose you can take the better.
Also with the 100mG hit to begin with you then save the option of the 50mG later. You could even take it 30 mins into the roll if its not enough of a kick.
Last point to mention here IMPORTANT. I hear talk of snorting MDMA. Most MDMA you encounter is infact MDMA HCL. This is a salt.
The salt is produced in a reaction between MDMA Freebase (mdma in pure form) and Hydrochloric Acid.
MDMA in its purest form is white.
Most MDMA is not white. It usually ranges from a light yellowey colour to light brown to dark brown. The lighter the colour the cleaner the MDMA is.
Most clandestine chemists dont bother with the final washing stage as many users dont like white MDMA as it then becomes easy to cut with bunk and most people assume proper MDMA powder is brown.
So if your MDMA is not washed properly it can have Hydrochloric Acid in the mix.
Also if you snort pills you have the added bonus of fillers adulterants and binders to add in the mix.
Binder is often PVA and other nose harming glues - Filler is often caffeine, pseudophederine, manitol and sugars and adulterants can range from MDA, MDEA, METH etc.
Fancie putting Salt Up Your Nose? PVA Glue Up Your Nose? Hydrochloric Acid Up Your Nose? Ever wondered why MDMA railed hurts so much?
It fucks up your nasal cavity. This will affect breathing and your sense of smell in later life.
There are additional health risks to snorting drugs. There is an argument that snorting could be more neurtoxic. its a debated topic but my thoughts are its much closer to the brain. The blood brain barrier is crossed in the head not in the stomach. Its another potential risk.
If you do want to snort MDMA it needs to be cleaned using Acetone. Once you have cleaned using acetone you need to allow plenty of time for the acetone to evaporate.
If you acetone clean MDMA it is possible to create white MDMA.
Acetone can be purchased from Hardware Stores. It is important that the acetone does not contain H20 (Water) or the mdma will dissolve.
If it dissolves dont dispair but you then need to learn about recrystalization and thats another story.
For correct HR advice please dont snort MDMA crystal or Pills.
Be safe out there everyone.
Hope this info helps.
Futura