No stars. Product just not suitable for uk diving. Full stop.
I tried the FinClip product via Simply Scuba who have refunded my purchase without question. 5 stars for them. They’re simply not suitable for dry suit diving, or any other in my view, just a poor design.
The vertical part of the unit is not high enough by 45-55mm to properly retain the uk dry suit dive boot given that the base of the unit lifts your boot by 10mm to start with.
Someone needs to grab this and make something out of it that is suitable - first stop - look closely at a dry suit boot in a fin, then add 10mm to the height of the heel. Bear in mind that there is often a fin strap retaining lug projection that you need to get up and over. Come on, wasted opportunity!