LMS is a great starting point to understand switches and practice against other pkers
if you want to pk pvmers you can bring simple swaps like mystics+barrage and dhide+rune cbow and diamond bolts + dds at places like fire giants in deep wildy (which is aids but you learn mechanics), ice giants, even hellhounds, or callisto just to feel it out.
i started pking with a friend who could semi-pk, bringing simple swaps and targetting pvmers, but then did a lot of LMS on my iron and it made me actually want to contest other pkers, made it a lot more fun and i got way better at clicks after lms.
my tip is use fixed client mode so your clicks are always consistent where your prayers are, spec bar, etc so you can train your muscle memory
