I haven't used true suspension (water based) at all. However, I used an oil based home brew that was 50 mgs. test base (no ester, same stuff that is suspended in the water) and 50 mgs. test prop per mg. That was good because the no ester stuff is in and out of your system in a matter of hours. With another test ester stacked you keep some test circulating all the time.
So...I agree with gator's suggestion to stack the suspension with some other test with an ester attached, such as test enanthate. Beyond that, anything stacks well with test.
Test is best but tren is pretty much king. I don't use it any more due to the side effects but you just can't beat test/trenblone.