Requesting feedback on learning resource toswitch from ring to SnG

[Bco1/75]

I am have been playing cash games for the past few years and due to work demands I do not have time to sit for 4-5 hours in a ring game....once I start I cant stop.....

I am starting the HOH books. Anyone else have suggestions on a learning reference to make the switch?

I have heard of a few people with online guides/classes. Anyone use them and have feedback on some?

THanks