had my HF QH since 2015, no problems unless you count operator errors.  And yes I bought a bunch of the cat 1 to cat 3 adapters  and one of Ken's Bolt on Hooks adapters and the top linkage adapter from Ag South. And I run everything from a 1954 JD P 198 Bush and Bog Harrow,1969 Hardee T 52 LT...