"The main difference between propionate, cypionate, and enanthate is the respective duration of effect. In contrast to the long-acting enanthate and cypionate depot steroids, propionate has a distinctly lower duration of effect. The reader learns how long this time is from the package insert of the German Jenapharm GmbH for their compound "Testosteron Jenapharm" (see list with trade 'names): "Testosterone proprionate has a duration of effect of I to 2 days." An eye-catching difference, however, is that the athlete "draws" distinctly less water with propionate and visibly lower water retention occurs. Since propionate is quickly effective, often after only one or two days, the athlete experiences an increase of his training energy, a better pump, an increased appe-tite, and a slight strength gain. As an initial dose most athletes pre-fer a 50-100 mg injection. This offers two options: First, because of the rapid initial effect of the propionate-ester one can initiate a sev-eral-week-long steroid treatment with Testosterone enanthate. Those who cannot wait until the depot steroids become effective inject 250 mg of Testosterone enanthate and 50 mg of Testosterone propionate at the beginning of the treatment. After two days, when the effect of the propionates decreases, another 50 mg ampule is injected. Two days after that, the elevated testosterone level caused by the propi-onate begins to decrease. By that time, the effect of the enanthates in the body would be present; no further propionate injections would be necessary. Thus the athlete rapidly reaches and maintains a high testosterone level for a long time due to the depot testo."http://www.domesticgear.com/testosteronepropionate.html
would this make sense.. it would take longer then a few days for the test e to kick in ..