Post 428410 (https://www.thevespiary.org/talk/index.php?topic=8697.msg42841000#msg42841000)
(geezmeister: "The post-reaction workup: a cook's summary", Stimulants)Its a post reaction workup by Geez, and it is very informative. Read the whole thing - there are some posts there by Osmium which are also very helpful.https://www.thevespiary.org/rhodium/Rhodium/crystalcreations/index.html (https://www.thevespiary.org/rhodium/Rhodium/crystalcreations/index.html)
https://www.thevespiary.org/rhodium/Rhodium/worlock/toc.html (https://www.thevespiary.org/rhodium/Rhodium/worlock/toc.html)
(https://www.thevespiary.org/rhodium/Rhodium/hive/hiveboard/picproxie_imgs/pdf.gif)
Flask size - I think the general rule is 1ltr per ounce of ephedrine, so for you a 5000mL flask would be closer to the mark. (for 150gms)
Swim runs 200 in a 3L flat bottom without a problem,
A 150gram run can be done in a 2L easy... 5L flask
you could get away with 400gram starts