Show/hide condition

I have 2 radio select boxes that I’m setting up to show only 1 of, depending on a formula/condition. So if the total size of x is under 16.1 then radio box 1 shows, and if x is over 16.4 then radio box 2 shows instead, and the associated pricing from the radio on show tally’s into the order total.

Everything works great, however I currently have the formal that works out the sizing of x showing up in my totals which I didn’t want, so I’ve set that to hidden and it stops the condition from working. I’ve actually got the formula checked as ‘hidden by default’ and ‘calculate hidden by default’ in case it makes a difference.

Other formulas/boxes using hidden formulas seem to be working fine, it’s just this show condition that is breaking. Are there any options to make this work?

Outside of that it’s been a pretty smooth ride, enjoying the plugin! Many thanks. Dan.