I was wondering whether anyone is using one of these?

There are two ways to mount this head. You can either remove the top half of the enlarger head (where the bulb is) and attach the Primos via an adapter or you can remove the complete head and place the Primos right on top of the condenser.

Is there any advantage/disadvantage for either method? For example, differences in light intensity, creeping of the head due to some weight difference.

Thanks a lot