switch from sust 250 to test e?????

[ds23305]

hey guys i would appreciate ur input on this. I had 10 amps of sust 250 so i decided to pin once a week. im on my fourth week and i have seen little to no gains. i can feel my strength going up though so i dont think its fake. i have test e available now. my question is should i finish the sust that i have left (which is 6 amps) pinning twice a week?? and is it ok to switch to test e to finish the cycle?? i would be pinning test e twice a week also. appreciate it.