Some mums just stretch all the As slowly and allow for 2 really decent naps which gives a longer day but better naps and better nightsleep ( I know Kara does this with great success from what ive seen - kind of makes me want to try it! -please share Kara!!)
Yes, I do this

It's kinda harsh, and leads to a week of hell, but it works! Bear in mind that I have a textbook/angel baby so she does fairly well with OT until it is quite bad... and by then, she has usually sorted things out

I can easily push her 2-3 days before it catches up to us and backfires horribly

Also, I don't push A times slowly. I just do it one day - If my goal is a 30 min increase, I do whatever I have to do to get her as close as i can to that number... go for a walk to get the mail, do the laundry...whatever it takes. I push her until she is beside herself and then put her down... this method will shift an A time in a couple of days

Since they are super exhausted when put down, they take a monster nap (unlike when only a little OT and they short nap on you). These monster naps prevent OT buildup and get you through it quicker

Not very BW, but it works!
When I dropped the CN (at 5 months), I pushed DD to do a 3 hr A then a 2 hr nap, then a 3 hr A, then a 2 hr nap, then 4 hrs A to bed. The kid slept through all night and crashed without a peep for every nap and BT. This worked for a few months, then she started to shorten naps on her own, I set her naps to the times that they had been already and it still worked out great.
I had to start capping naps when she hit 8.5 months... her A times jumped again and she was taking huge naps... our days were way too long. She has always loved her naps and kept her nights to 10-10.5 hrs until recently. I experimented with short AM/long PM and the opposite... the best way to decide which to go with is to go with whichever will work easiest with your LO. Mine is prone to early mornings (we did 3 months of 5am!), so BW would suggest short AM/long PM... she loves her AM nap and has always gone down easily for it... if one nap is gonna be a monster one on any given day, it will be her AM nap... so I am going with it!
If there is one thing I have learned, you do need to guide their sleep at times, but you do need to do the one thing Tracy really emphasizes and listen to what that baby is telling you they need as well. If they need to have things against the grain, go with it... fighting to do it by the book will make it more difficult for both of you

This is our current sleep plan:
wake 650 ish
Nap 1020-1210
Nap 320/330-430
BT 8pm.