The basha is made from different material to those old issue jackets (new ones are breathable!!). I never had one go mushy and I've never heard of it - but anythings possible (my wife's goretex jacket once de-laminated because of her hair spray <img src="images/graemlins/confused.gif" alt="" />).
However, if you want the best of both British and Aussie bashas try this:
http://www.sass-kit.fsbusiness.co.uk/catalogue16/images/Foul_Weather/basha.jpgComes from Paul Lewis at SASS Supplies in the UK.
Web site :
http://www.sass-kit.fsbusiness.co.uk/It comes with free bottle of Seam Sealant with sponge applicator, and spare DPM Nylon patching material.
The corners are strengthened with Cordura panels and have loops and plastic 'D' rings. Ideal kit for short-term OPs and bashas.
A) 9 long nylon webbing loops (one in centre of Hootchie) to go over branches if necessary.
B) Eyelets in each corner, and middle of shorter side, for Bivvi Poles.
C) Large size. Approx 280cm x 180cm.
D) Made from high quality, lightweight, DPM nylon with a polyurethane coated underside and flurocarbon proofed topside for outstanding waterproof quality.
SASS AUSSIE HOOTCHIE BASHA.....£45.00 (£15 cheaper than Ray Mears version!!).