ive risen to silver 1 in about a month from being stuck at silver 5.
I climbed from Silver 5 to Plat 5 solo in a month and a half. :3
I also almost completely stopped warding that bush in bot river. Its almost pointless. I ward deeper up the river because if someoen is at that bush its usually too late.
I have to disagree with you, but I guess it really does depend on who their jungler is. Since many junglers can just cross into the river bush quite easily and avoid that deep river ward altogether. Also, you generally need to have an idea where the jungler is at all times, rather than assuming he can gank at any time. You always want vision of their jungler, so deep wards in their jungle are always important. There are actually a couple good pink spots in the jungle where the enemy will never find them. And also, if you spot the jungler from the ward instantly (assuming you ward at the very back of that river bush), then you can get away just fine. And since you generally know when the jungler is gonna gank, you let your ADC know to be careful and stay around middle of the lane for a minute until the jungler moves somewhere else.
I swear, my ranked games have literally turned into a "track the jungler" mini-game.