I'm puzzled by this. First, for anyone else trying to follow the conversation, by "throw" Ray means "squirt" or "deflection." It's what they call squirt in the UK.
In my experience, snooker cues have less squirt than pool cues in all situations. I've never played with a John Parris cue that I know of, but maybe it has much more squirt than I'm familiar with. Part of my suggestion to let the young cousin keep the snooker cue was based on that experience. I feel it is better for him to start with a low-squirt cue rather than re-learn side spin later, and since a Predator costs about US$300 at least and some good snooker cues I've seen cost a lot less than that, it seems a not so unreasonable choice. If the alternative is to get him a typical heavy-ferrule, 13.5-mm shaft pool cue, I think the snooker cue would be a much better choice, if it is like the snooker cues I've played with.