Aviatorpk - I don’t know your experience so apologies if I pitch this at the wrong level.
A light –500 is tricky because it does run out of elevator at low speed on landing. It was developed from the –300, which is generally heavier and has more moment arm to the stabiliser.
I fly the –500 50% of the time and usually at a landing weight below 45T. My technique is to flare low, buttock clenchingly low if you are used to the –400! A glance at the rad alt shows 16 or less at the start of the manouvere although if your eyes are inside, you are unlikely to get it right. This ensures that the flare will not be too extended which would bleed off the speed causing you to lose elevator effectiveness. At about 16 RA (judged by eye) close the throttles in one quick movement and gently pitch up about 1-2deg. If you only fly the –500 you should get it cracked in weeks, if like me you fly all three then you can still expect to get bitten after 6yrs on type. Some pilots like to add on an extra 5kts if the –500 is light, but personally I think Vref+5 is OK once you have the knack.
S&L