Well, no one can tell you that you will not get any sides... in fact you can be sure that taking ANY AS, especially a 17AA, will at least elevate your liver enyzmes temporarily. So it is a choice and trade off we all must decide on.
Now there are things you can do to reduce the likelihood of problems:
Have bloodwork done pre/post cycle.
take ALA/milk this./Tylers
Split up the dosages into 25 mg each, spread out throut th day.
Don't drink or do rec. drugs
Drink alot of water
Keep cycle short (4 weeks for 17AA)
Is there any reason you need 100 mgs per day. I know some big guys who have gotten results from 50mg ED. I would start with 25mg or 50 mg per day and go from there. Don't forget to take the grapefruit juice with the A50 (many have written on this Board that iit potentiates the 17AA - I'm not sure of the chem reasons, but it can't hurt - I think Huck explained it a while back)
You willnot keep all the gains, because much of the weight gain is water, which you will lose. I would take some creatine post cyle which may put a few pds or water back on...
Good luck!!
TPH