Planet X Headset, alternative to FSA Orbit C-40 No.42 ACB Tapered Headset

Anyone found an alternative to the headset that Planet X recommend for most odf their frames, the FSA Orbit C-40 No.42 ACB Tapered Headset?

https://www.planetx.co.uk/i/q/HSFSAOC40/fsa-orbit-c-40-no42-acb-tapered-headset-(xyz)

This one is almost the price of some of their frames!

Anyone know is this one on CRC fits, the reviews seem to suggest it will?

http://chainreactioncycles.com/brand-x-headset-integrated-tapered-steerer/rp-prod130924?utm_source=affiliate-window&utm_medium=affiliates&utm_campaign=Skimlinks&utm_term=Skimlinks&utm_content=Sub+Networks&awc=2698_1531943177_318bead8665b20cd3e414048df86eef1

Ta

Yes. 42 52 are the magic numbers. The brand x headsets are great.

I used a lifeline one on a PX London Road a while back and just fitted one of those brand x ones to a pinnacle frame that specified the same fsa one.

For the price I’d give it a go!

Thanks Both