I wonder if you could expound on that premise a little bit more.
What are the pluses and minuses of each method. Is there an advantage to having a direct install to usb.
I would be interested to know more. I would be using an 8GB Flash Drive.
JohnBoys method works great. The best thing about it is what you lear about Linux in general when you do a manual installation.
There are a couple of things that should be noted ....
There was justified fear a few years ago about the wear on USB flash sticks with a full install, and to a lesser extent with a Live install.
The situation has much improved ..... how much is open to debate of course.
On a full install, all files are decompressed so should launch faster than the compressed files of a live install.
The overall size of a full install is much greater than the live because of that same decompression of files.
You can fit multiple Live OSs on a 4GB flash drive ..... not so easy to do that with Full instals.
If you have just a 1GB flash drive that will suffice for Live but not Full install.
On such a drive you can change variation from KDE to Gnome etc just by copying the OS files onto the drive. Once prepared it needs little or no further work.
So there are considerable differences between the results of the different methods.
'Horses for Courses' as is said around here ........ use the method that does what YOU need it to do.
Personally I have a fondness for the Live mode ..... have had for many years
..... even used it on small internal HDDs originally, and later had one on a larger internal HDD for emergency booting ----- needed when I borked my main install! So much faster than using optical media that it is close to running from a full install. I still have a PATA HDD (about 2.5GBs) which has a live install on it.
I used it a lot for old donated PCs ..... most of them these days can be booted from USB so the HDD only gets used rarely --- I do not believe I have used it this year.
Anyway ...... Live mode on a USB drive is just another means to boot the OS.
No big deal, but it is great to have the facility.