The first thing I ever used was cyp. I was on one 10cc bottle spread out over I believe 7 or 8 weeks. After about 3-4 weeks I went back to my friend that sold it and told him he was an asshole cuz I thought it was fake and nothing was happening. He told me to stfu and just keep usiing it. Assured me it was real, and he was a "big time" player so I took his word and stayed on. Week 4 or 5 my strength shot up out of nowhere on every lift. I was getting pumps I'd never felt before and in those last 3-4 weeks I gained a little over 20 lbs. Downside I was way bigger, but holding water like a mofo. My cheeks were soooo huge that when I would come to work (at the gym) one of my bosses used to sing "puff the magic dragon" as I would walk by. lol
Personally, I've always like enanthate waaaaayyyyyy better for my test. I get strength gains off very little dosage wise, and I don't bloat up like on cyp. The best I've ever used is Testoviron by schering out of Europe at 250 per amp. Amazing stufff! Weird side note....I once was on testovirons and growing awesome with no sides. A friend decided he didn't want to use juice no more and gave me like 5 amps of primo teston also 250 mg per amp, also by schering, but from mexico.....within a week and a half i was getting the feeling of gyno starting and broke out all over the place. Never could figure that one out.
I have used deca (whatever that shit from mexico was called in the 50 ml bottle) with test, and without. I agree with everyone else. Don't think deca adds much with test, and it sucks ass without it and kills your wood. It did not make me hold water anywhere near what cyp did though. Nothing ever has come close to that