It isn't an adjustment per se.

Imagine a block of oil where the THS is.  There is nothing outside of 10 on either side and the oil stops at 42 feet.  Where there is oil, there is skid and where there is no oil, there is friction.

The THS bowler uses the friction to the left or right of the block of oil.  This is where their ball begins encountering friction and thus they make adjustments accordingly.  Move feet and mark inside will have the ball encounter the friction further down the lane (seeing less friction).  Moving outside will encounter friction closer to the foul line (seeing more friction).  And this makes sense, if the lanes seem oily, you would move closer to the friction to have the ball be in the friction more and vice-versa for dry lanes.

On sport shots, instead of no oil (friction) to the outside of the block of oil, a bowler must instead rely on the friction at the end of the oil.  Usually this means there is less distance the ball is encountering friction since on THS, the ball typically encounters friction before the end of the pattern.  Because of this, the ball will generally see the same amount of friction independent of where it exits the oil.  Throw the ball down the 1 board on a 40 foot sport shot and your ball will see 20 feet of friction.  Throw the ball down 15 and it will still see 20 feet of friction.  Because of this, the bowler must instead control how the ball reacts to the friction. 

As an example, lets assume a ball will have a reaction shape that gives a 10° angle once it sees friction.  Throwing the ball straight down the lane will see a 10° reaction.  Throw the ball with a 5° launch angle and you will have a 5° reaction.  Thus "controlling" the reaction at the end of the pattern to be less drastic.  (This example is extremely general in nature)

And of course, there are many different ways to compound this control with ball selection, drilling and surface adjustments.

Excellent discussion IMO
I hear a lot of similar comments on the extra frame telecast when they have some of the pros on for commentary
quite fascinating to me anyways, just confirms what I have read and what i see on the lanes.
I am fortunate that I go to a gold coach for equipment and lessons, he is very in depth if you want that sort of thing
take taping of your thumbhole, the ball needs to grip you, not the other way around
thumbnail should just touch the back of the hole
this simple item will affect your release, ball roll, etc, etc
It makes a difference for me anyways

Ok, so it sounds like its not about how you adjust to oil transition - but how you read the ball reaction.

Adjusting to oil transition does require side to side (angle and line) changes.  Some one in the other thread had me thinking that there was a better way to adjust to changing your shot....

Your ball reaction will tell you how the pattern is transitioning, and you can make the call as far as adjustments with lateral moves/speed and hand adjustments/ball selection. 

Good posts, thanks for information.

I think the THS hurts bowlers learn about how to play the lanes because there's always friction to the outside.  Avabob hit this on the nose in that everyone has the opportunity to find something comfortable for them since friction is present at any length. 

Bowling on flatter patterns with someone to help read the lanes will open your eyes to how much challenge bowling can offer.  I get excited during the summer because I've been able to bowl a sport shot league that has different pattern every week the past few years.  Length of pattern was the most important factor, then volume of oil. 

It's all about getting the ball to slow down on the correct part of the lane. Susie Minshew would say we're trying to make some front to back miss room. In other words, if your target is the front of one of the rangefinders, you ideally want a ball/line that will still strike if you hit the middle of the rangefinder.

As for playing straight, I agree and disagree, from my own experience. Yes, it's generally better to play straight. However, this needs to be practiced. If you're a stand left-throw right player on a house shot, you're not likely to be successful jumping to the right all the sudden.  My straight game is still inconsistent, so I have typically found more success playing at least a little hook to keep my shot in my comfort zone. When it comes down to it, you need to make good shots, and you need to be comfortable to make good shots. JMO.

True, but you cannot control where the ball exits the oil on a fatter pattern, like you can on a house shot. 

you need to do both for sure
keeping the ball online and to quick - will slide right past breakpoint
conversely, ball online and to slow - through the face just about every time

correct speed and off target, is, well off target

I tell people, if you want to watch and learn form someone, watch the gals
the PWBA for example, they have such good fundamentals.
you can see the soft hand and targeting is so good with some of them, they arent trying to hook the lane unless the pattern calls for it