Whoa buddy!! If this is your first run, that's way too high a dosage! I've used LMG MANY times before and it's my favorite. Being seasoned, I only dose up to 75mg for 5 weeks, and I've been using it for about 4-5 years or so?! Try running it at 75mg and see what happens. You probably won't see anything for the first week but it'll kick in during the 2nd week. Hold off on going up to 100mg, and only go if you don't see anything after 2 full weeks at 75mg. I don't see the purpose of running a compound higher than necessary if you can get the same results from a lower dosage. You'll just get more potential sides. And for the tamox, I personally run 20x4, but that's just me.