Here's why I ask..

I like to use Cyp as my TEST base cuase its a long ester and I can get away with biWkly shots. But Cyp take 4-5 wekks to kick in. Why cant I start my cycle shooting half Cyp half Prop EOD for the first 3 weeks then switch to all Cyp.

The Prop will get me in to the kick zone in the first week instead of waiting so long for the Cyp.

I know that very few people do this and there must be good reasons.

What are the downsides to this strategy ?