Re: Health Visitor concerned about 9mo weight
Keep ducking your HV's calls. 
There is no doubt that you have a big baby. But there's nothing you should be doing about that except waiting, nursing on demand, and focusing on feeding only healthy solids. As babies become more mobile, they tend to "lean out" and drop percentiles on the charts. Once your baby is cruising/walking/running, the calories that used to get packed on as fat will go into motion, instead. I am guessing that you won't have to do anything but wait and watch, and eventually a lean toddler will emerge from the baby chub.
Breastfed babies don't overeat, because milk flow slows down as soon as the baby is full and transitions from sucking eagerly for nutrition to sucking slowly for comfort, so there's no reason to limit your baby's nursing frequency. This is totally different from how bottle-fed babies eat. Bottles deliver a rapid flow of fluid regardless of whether the baby is hungry or just sucking lazily for comfort, and it is easy to overfeed using a bottle.
Night-nursing is a problem ONLY if it is a problem for mom, in terms of getting enough sleep. "Controlled crying" is parenting advice, not health advice, and there's no reason for you to use that technique if you don't feel comfortable with it. It's easy advice to give but difficult advice to follow: it's not like your HV is going to be there in your house, listening to the baby crying sadly from loneliness and hunger!
When it comes to solids, it sounds like your baby is right on track. A 9 month-old baby should still be receiving the majority of her calories from breastmilk (or formula), and not from solids. Solids should not begin to replace breast milk until some time after the first year, and many babies do not transition to a majority-solids diet until well into their second year, and don't have much interest in solids until that point. Since breastmilk is the healthiest thing any person ever gets to eat, and because it provides balanced nutrition (unlike most solids), there's no need to push solids at this point!
Since you have a big baby, the one thing I would do is focus on feeding healthy solids. The parents of a small, skinny baby might need to tempt their child to eat by offering things that are sweeter or fattier than average- but you don't have to do that. Just offer healthy solids (fruits, veggies, whole grains, meats, fish, etc.) and let your baby develop a taste for those. That way you're building healthy habits and a healthy palate for the future.
Don't stress!
Coolest thing my big girl said recently: "How can you tell the world is moving when you are standing on it?"
Coolest thing my little girl sang recently: "I love dat one-two pupples!"