Hi Dutchie !
Looooong time ago, I thought to be capable to make my 'own styles', but after a few years of trying I found out it is not as easy as I thought it would be.
To build your own styles you have to be 'player' of all the instruments you use :
Drums, guitars, piano, percussion-set .... etc. I cannot compete with pro-drummers that record drumparts for arranger keyboards.
(They do it using drumpads (MIDI) or 'live' for (X1)grooves (WAV-samples))
I'm realistic enough to admit I cannot play all instruments with the desired 'live-feeling' like pro-musicians do.
Some of us (I guess 15 %) do make 'own' styles and all others use the factory-styles or other (bought ?) styles.
Sure, making an easy 8bt- or 16bt style is not too difficult..... but try to make one including 3 intro's 4 variations, 4 fill-ins and 3 endings... ;-)
That's 'different cake' (Dutch expression )
My X1 has 198 perfect internal styles and I have no illusion to be able to improve them myself ever Ilija !
Perhaps you can ?
Roel