Got both prolites and sheepskin pads. Tbh, the sheepskin looks better but I do like prolites.It seems that, to be effective, the sheepskin needs to be fairly thick which isnt great for the fit of the saddle
I've got both and the horses seem happy with either. Personally I don't like the sheepskin because it sits the saddle really high and you feel like you're hovering really high off the horse's back but I bought it because the saddler told me Pro-Lites are rubbish. I have gone back to using the Pro-Lite and my horse hasn't objected.
As far as pressure relief goes... there should not be pressure in the first place if the tack fits correctly!
If you are concerned about a girth galling, sheepskin is best because it wicks away moisture far better than any synthetic material. Clipped horses especialy apreciate it.
If you had read my original post, you would know I was asking about a headpiece pad, as in comfort bridles, and a girth sleeve. My tack fits perfectly well thankyou
I have a prolite gel pad which I use on top of a merino saddlecloth. I have close contact saddle and it has made no difference to the fit, as it was suggested by my saddler, but it has eliminated the heat bumps Star was getting on her back. I also use a prolite girth sleeve and a prolite noseband cushion. The prolite girth sleeve dries pretty quickly and has lasted much longer than my sheepskin one did. Just less fuss all round. She wears an Elevator bridle and as they come with a crank noseband I put a sleeve on the back of the noseband. However it is only a cavesson noseband and the prolite is just in case as she is so sensitive.