I've just ordered a LitePro Alu Seat Post from eBay and am considering buying a LitePro Seat Post Protector. Here's the link -
LitePro Seat Post Protector Protecting Sleeve Bamper for Dahon Folding Bike | eBay

My question is will there be a compromise in strength, stability etc. or would this be a totally ok swap out, hence protecting the seat post from scratches, does anyone have this on their bikes, or any experience of the product? Have a Dahon Archer (same as Speed P8)