There are many ways to skin the proverbial cat with configuring the Ghost. Just today for example....
I've lately been pretty pleased with the .20/18.9gr slugs @ 910-915fps. That's the relatively new speed since I added back in the 38grain hammer weight a few months ago. That 910-915fps for the 18.9gr is with the OEM 0.047" wire spring plus my homemade 38grain hammer weight, plus a reg pressure of 128-130 bar, and MIN on the hammer tension wheel.
After making the above changes, I've only been shooting slugs and hadn't even chrono'd anything else. Well, prairie dog season is coming up and in some places pellets are the better choice, so today I decided to run some of the .20/15.89 JSB pellets over the Chrono. They came back at 995fps! Too hot for the pellets. And since the wheel was on MIN I couldn't go down in hammer spring tension to reduce the speed. So I removed the 38grain weight and could then only get to 875-880 with the slugs with the hammer wheel on MAX. So now too slow for the slugs without the 38grain hammer weight. So I swapped the 0.047" wire hammer spring for the 0.051" wire hammer spring. Back over the Chrono....I could get back to my desired fps of 910-915 for the slugs with MAX with the heavier hammer spring, and "5" on the power wheel was good for the 920-930 I wanted with the .20/15.89gr JSB pellets.
That's an example of using two different configurations to get the same exact speed with the .20/18.9grain slugs, whereas one of the combinations of adjustments wasn't going to allow me to also use the .20/15.89gr pellets, while the other combination of settings makes it possible.
That's the beauty of the Ghost, the adjustability creates a platform that allows the shooter to get what they want.
After the reconfigure I shot from 10-225 yards with the .20/15.89grain pellets, and had a lot of fun doing it. Im all set for long range prairie dog shooting for the summer now, with slugs or pellets, at EXACTLY the speeds I want to shoot them. And that's with a simple spin of the dial. Just need to print a dope card for both, using the info gathered today for the pellets and prior dope info from the slugs. And I'm OCD enough that I confirmed my slug dope while I was gathering pellet dope. After the changes I just wanted to KNOW that the previous dope was still good, and it is.
The swapping of hammer springs and chrono work took 5 minutes. Afterwards, the enjoyable part (the shooting) lasted a couple hours.