I didn't have the chance to break Faith in due to being 8 months pregnant but I did do all the ground work with her up to the backing stage and I broke her mother, as well as many other warmbloods when I worked at stud.
I start by lunging at walk with only the halter
Then I start biting, and lunge with bridle but the rein attached to the halter, usually walk and trot at this stage.
I then put the roller on, firm enough so it doesn't move, but not 'girth tight'. After a couple of sessions I attached side reins to the roller and let them jingle around and tighten up the roller
Next I attach them loosely to the bit, by this time I've usually attached the lunge rein to the bit at walk, trot and canter. I don't ask for much canter on the lunge as most youngsters do not have the balance to do a 20m circle for too long.
Then it's onto the saddle, I've never had an issue with saddling as they've already gotten used to the roller.
After a while I lower the stirrups to where they can hit against the elbow.
During all this I've started backing, like anothr poster mentioned, I also do the whole jumping up and down, immitating mounting. I'll grap onto the saddle and rock it as well, I'll also swing the stirrups around doing the 'loose horse flying stirrups' immitation
Mounting I'll do gradually, getting on belly down then sliding off, after a few goes I'll throw my other leg over and then just sit and talk to them.
After I've been so proud of them for not moving and praising them all the time, I change the rules and start asking them to go forward
And thus training commences