Daz i had a round like that all next door work when i was up north , i upped 10% at a time i found 1 in 20 wasnt happy but i did it that way just incase i had big cancelations.
imo i will never buy a round thats so compact again you might have it all there .but then you need to be carefull with so many things ,if one person gets upset cos of the pole or cos you forgot to close the gate and cancels , her mum cancels and brother and friend so you lose 4 lol
same with price rise if one person dont like it you might find that that persons next doors dont too, so you get 5 cancellations
i dont know whats the best thing for you to do ,try up them slowly like over the year say 15 houses a month see what the response is, or just tell em all gently in march its going up.
The other thing i hate about compact work is if someone canvasses your area and picks up one house, he could also pick up that houses friends and family so again you could lose 5

again that person could leave you cos they were paying £6 for years and now you upped it to £7 then that might give him a reason to leave abd takes his friends and family with him.
Im pleased i saw the back of compact rounds i will never buy one again !
you can make good money but its a ticking time bomb lol