yeah, don't go with sust man...sust is for boneheads that think they know what they're doing...lol. It was designed to try and keep T levels consistent as possible, but in reality, it does the exact oppositte and is the most inconsistent for blood levels. Plus the weight of the longer esters is just giving you less actual test/ml.
Go with either enth or cyp if wanting to use a longer ester, anything else is just redundant....good luck with your cycle...