I'm small too - 5'1/2" and 105 lbs. - and the Epsom Salt dosages have been fine for me. I don't tend to get to the last one and that's worked out fine so far. I just did a flush last night, actually, and I got out my largest green blobs yet! I don't tend to get out a large number - maybe around 30 per flush - but I have been feeling much more energized and clear-headed lately.
I've done about five flushes and I do have questions about whether the Hulda Clark procedure is the most effective one for me. I think I'll switch it up next time. I guess I won't know until I try another one. I would just hate to go through all that and find it's a dud!