Look, any other oral you are going to take will be 'hard' on your liver. So what? Are you going to be on for 3 months straight? Ox is very mild on the liver under 80mg/day. In fact, I have seen where it is given to cirrhosis patients to improve their liver function.
Anyways all this hard on the liver stuff is so variable. It's like saying alcohol is hard on the liver. And you see alcoholics drinking fifth after fifth for years. My point is, be reasonable, and you will be fine. Just be sure to take time off, the liver is a wonderful organ and built like a tank.
Isn't winny for cutting, you ask. Well, isn't ox for cutting? Gear is gear, what you do with it depends on your diet, workout, etc. You can bulk with winny, you can bulk with ox.
I would say it is very possible to put winny in at 50mg/day with your ox at 60mg/day and you could hit 12 pounds. And that is probably in 6 weeks. Hell, at high enough doses, winny is amazing. There was a post yesterday by Fonz about how he took 200mg/day for 2 weeks and he gained something like 6 pounds.
Anyways, you can stack anything with your ox. My pick would be the winny, but go with whichever one you want.