It's all in how you attach your Ventisit, Andy. I drilled a series of small holes in my seat, and zip tied it down. Happiness.
The airflow cushion's pretty good, tho' the one downside is that the wicking/softer top layer (foam or otherwise) holds a fair bit of water if you've left it in the rain without a cover over it.
That's a bit of a design flaw, surely?
Err....yup ! - tho' to be fair I manage not to get it wet too often..partly by getting the train when it's hissing down
- and it's not that noticeable if it's getting wet whilst riding - just afterwards when I come to plonk my backside back on it..
That's why I was kinda wondering about getting a ventisit (or some ACS10 for a spot of diy). I've previously tried a ventisit-clad hurricane at London Recumbents and, felt a little less 'connected' with the seat than with the closed-cell foam, but a few years on of riding a 'bent and I might not notice it as much now.
>It's only a seat Andy, if you stuff it up you can buy another one.
Err..probably a relatively expensive one if it's carbon :p
How's yours secured, Andy ? - could you not put some adhesive velcro along the seat edges, and some stitch-on stuff on the edges of the seatpad ? - that's pretty non-destructive (if a PITA to do..)