Alright well I am sure you know I am just trying to feel you out whether or not you should run a pro hormone or designer. From the sound of it you have some experience and your older than 21. Your choice is your choice. If your making gains still naturally and well, then I would hold off on running them.
However...Spawn has sort of a low dose of Epi so you might wanna ask around to people who have taken it and see what they have ran it as. The higher your dose of epi goes the more tren you will get in your dosing.
By the way, not an expert on this stuff, thats why I am telling you to maybe ask around to people who have taken it or perhaps someone else will chime in here. What does the bottle say to take????