Let's cool this down before
Godwins law takes effect.
superdroll if you had those results with SD I would say that you are not likely to find anything better, at least in the legal/grey area.
The reason everyone is so skeptical of your gains is that people saying they gained 30lbs in 4 weeks are a dime a dozen on BB.com, and I don't think anyone wants this place to become the pissing contest that is BB.com.
If you gained 25 lbs then congrats, some compounds seem to just work with some people. Unless you have the pics to prove it let's end that discussion and get back to your original question on alternatives to SD.
The two alternatives that come to mind are Mass Tabs and Havoc, both of which bill themselves as comparable to SD without the sides. A search of this forum should supply you with some feedback on these compounds.