All parts in Extention are good. I have many bikes. And unfortunately, given the choice, I will never choose horizontal dropouts. The chain will always be looser somewhere and tighter somewhere. When changing the inner tube (which often happens in this sport), you must align the wheel with the brake. Changing the wheel is faster with vertical dropouts.
Edith has MT5 on the rear, not MT2.
https://www.trials-forum.co.uk/topic/200045-chain-tension-on-horizontal-dropouts/#comment-2720990