Tuning FX King/ Panthera tuning

Hi I'm new to the King so please bear with me.
I'm after tuning it but have seen two methods.
1. Turn macro to 13, micro to 2.5, then adjust reg to get your desired speed (I'm after 915ish, 25.4g pellets)
2. Turn Marco to full, micro to full, then use reg to get desired speed (915ish). Then turn macro down slowly checking speed each click until you lose velocity. Then you've got the sweet spot.
Which one do you guys use?
Go steady I'm new to this.
Thanks
 
Will begin with what caliber and barrel length. My basic approach is to work from low setting upwards instead of the other way around. Also the macro wheel really won’t be at the heart of your tune. It will only adjust how much of a range you can turn your optimal tune down. If you have the tune at 915 fps like you want and the macro at max you will be able to tune the speed down quite a bit. If you tune it to that speed with macro set in the middle you can turn it down half as much. I usually set the macro on max and tune to the heaviest projectile I will shoot. Anyway getting way ahead..lol. Start with barrel length and caliber. Also you can pm me your number if you don’t mind discussing it at like 9 pm EST. Drive all night so have lots of time then. 👍