You told him to use 100mg/day of tamoxifen which is plain and simply wrong. Your horribly written explanation of "why not" is completely unsupportive of your recommendation. And you didn't say the first few days the first time; you said taper from 100 to 20 over the course of 4 weeks. That would imply 100/70/40/20 - this is so much more than is necessary.
Also, an 8 week long estered testosterone cycle is questionable as well.
And again, 30mg of oxandrolone per day for 3 weeks will provide little noticeable affect, if any at all.