Handling large boas/pythons

I recently acquired several large boas as well as a pair of carpet pythons, all in excess of six feet (the carpets just past the six feet, but Ms. Plus Size, (my largest boa), is a bit over 9 feet and some of the other boas are 7-8 feet).

I want to be able to take them out and let them have a soak in the tub occasionally, I bought really large soaking containers for their enclosure but I am thinking they might prefer to stretch out and soak in a tub occasionally.

What tips and techniques would you suggest to get these guys used to being handled, without stressing them out while I do so?

For starters, if you don't have a hook then I’d suggest getting one (make sure it's sturdy enough to handle a bigger snake). You'd be amazed how easily a big snake can be manipulated with a hook. If you use the hook around the head area you can then steer the tail end with your other hand. Also, the hook comes in handy when one becomes ornery. Even the biggest snake doesn't like to be tapped on the nose with a hook. When dealing with the bigger ones I'd suggest having a second person around just in case. Better safe than squished.