You haven't really got a lot of each so you're highly unlikely to get huge even if you eat to get huge.

If you take both you have basically got a milder cycle than if you took 600mg test. Less chance of estrogen sides or water weight. Still make sure you have a serm (nolva etc) or an AI (aromasin etc) on hand during the cycle in case you start to grow tits and also for your pct.

Or you could wait until you get another few vials of test and run a test only cycle first and see what happens. At least then you'll understand what the eq does or doesn't add.

But I honestly can't see any real issues with 300mg of each. Not with just 10cc of each anyway.