If you start trying to cut at the end of this "bulk" the first thing that's going to happen is your going to loose whatever muscle you gained.
The steroids you choose does not determine bulking or cutting, your diet does. Also, just so you know, superdrol is one of the hardest steroids to get fat on. If your getting fat on SD your diet has to be pretty bad or your MASSIVELY OVEREATING.
if you wanna cut you have 2 options that won't tear through whatever new muscle you gained. Option 1 is finish the cycle as is, pct, after pct spend 8 weeks or so trying to maintain and then start a cutting cycle.
Or, drop the SD and continue your cycle for another 8 weeks or so in a caloric deficit.
Trying to cut in 3 weeks is literally just going to burn muscle because your going to have to do a hard crash diet to loose fat that fast