Does anyone feed Spillers competition Slow release energy cubes?

[checkmate1]

Just wondering how you find it? How much do you feed and how much work your horse does??
SORRY WRONG PLACE WILL REPOST IN STABLE YARD!!

 

[TPO]

I feed it. Horse in light work just now so only getting 3/4 scoop a day (think 1.5kg but can't remember off top of head). He's supposedly a "poor doer" but doing really well on this feed along with some chaff and speedibeet. I like it because it's cereal free. TGM advised me on it so might be worth PMing her.