I had a Landor S son, but I think he was the spitting image of mama, so it's hard to say. He had a fantastic canter, and seemed to know how to jump from day 1. Not sure about semen quality as the mare was imported while pregnant...
If you google Landor S, you will find a lot of his offspring are very talented jumpers. They are also said to be a "professionals" horse, as in, you can't ride them once a week. And I have heard they like to rear! But for pure jumping ability, I don't think you can go past him.
The filly that was just born is sooo lovely... but very cheeky (as they are). Already rearing and trying to kick her Mum etc.
Having brokered his semen for about 7 years, I am very familiar with it. Quality is great, and it is not rough on mares, so no inflammations as a rule.
Go for it!
Offspring- typey, more alive than some of the deadheads out there, but not mean.
They say" dont leave them in the stall for a week and then ride" but in my world, horses are ridden and turned out all the time, so dont really know it otherwise.
They are sharp, and willing, keen and have tons of jump. His full brother did GP dressage, and they move well for jumpers as well.
We have sold some from Germany that have on to be hunters as well, so the mare does for sure play a role.