I installed a full ironman 40mm lift which included the very same struts. They are all good on and offroad although the ride is quite stiff probably due to the coil diameter of the springs. Struts feel very positive on the road and handle as good as I would like.
And yes I can confirm they do have an extra 40mm travel.

If you don't mind me asking, what did you pay for the Iron man struts and springs?

I paid $500 for 4 x Ironman springs, 2 x struts, 2 x shocks, 2 x 30mm rear coil spacers and 2 x 15mm front coil spacers. My best bargain in a while I'll tell ya. All new in boxes with receipts.