I have had a number of different bullet feeders, none were much improvement without collators. Some like the Lee for example were worse than not having it.just wanting the option of someone who has the mini bullet feeder.
The MBF is a good product, would be my #2 choice for the 650 or 1050.
What I meant by "improvement" above is that at some point, without a collator, you will have to pick up and place each bullet base down into something, be it a tube or case.So replacing the cop with a bullet feeder would be nice and might get me to 1000 rounds an hour.
Add a collator and you eliminate the handling of each bullet.