yes - but with the bottle I noticed it coughed and spluttered few a bottle or 3 before settling down.
Also you can gauge the number of micro bubbles floating around - quite amazing. I noticed this in my little pump test rig as well.
I'm only running the 2GPM Lightning pump ATM in the car, but have a 5GPM Pierburg CWA50 under test in the rig..

PS - I'm not sure if its an SRT6 thing, but the IC pump on my SLK32 wasn't working for months and I noted IAT's of 80+C (180F) in my logs and my SC (and car) just kept cranking. Mind you I only register 5-5.5 sec. 0-62's but no hick ups lumps or bumps in performance.
I have a new pump now.