Back in the day Steris Suspension was totally amazing. 100mg/ml, painless and potent as hell. My favorite AAS of all time!!! Univet was similar as well and a UG run by "All Beef" was incredible as well. I miss those days!!
If it is made properly it is micronized and there is no pain or clogging. The problem is that labs want to take shortcuts or don't know what they are doing. So unfortunately the majority of the shit out there is crippling.
This. Aquaviron was great. Syd Group is crippling if it's the same stuff that was around years ago. If you have several guys telling you one brand is smooth (and good), that's what I would go with. Otherwise, be prepared to have crippling pain at the injection site for days and having to inject at least twice a day, that means pretty much every muscle in your body feels that way.