What's up mag - I personally dont think you need any ldex with that amount, and will always recommend not using it if you can-it REALLY messes up your HDL/LDL levels. I have run test ox for every cycle I have done, and only used l-dex when I went over 400 mg's with the test. Even then I ran what most would say is not enough ,but i think most under estimate l-dexs' ability to shut down estrogen production. I would use something like .25 every other day. Now this is not to completly get rid of estrogen, but just keep it from getting way above normal. I have seen reports of people using 500+ mg's of test with .5 of l-dex/day and had their est. levels check and they were way below a healthy range. At 250 mg's /wk you really shouldn't need any - but if your really wanting to stay hard I would say no more than .25 EOD - that should do the trick and still keep a "healthy" amount of estrogen in your system