well Syd has to be seen to stand up for the brand which sponsors his team and is involved in his league. Anyone will tell you that spool valves won't work as well in the cold and wet without more attention and adjustments.
By the way, the climate here in Ireland is far removed from the south of england. as i said before not condusive to the good health of spool valve markers, and knowing the guy who made the enquiry in the first place, he hasn't much experience maintaining markers, and for ease of use and general maintenance an Ego or Angel would suit him far better.
No one can say that one is better than the other, at the end of the day, all markers now will spit out 15 ball per second with ease. the only difference between them is looks price and "feel".