Originally Posted by
cranky old dude
If these questions don't lead to an answer you might take some time to view this installation video. When ever I think Schwalbe Marathon I wince at the thought of mounting them without ruining the tube. The video helped me, perhaps you'll find it not only entertaining but also helpful.
http://thelazyrando.wordpress.com/20...-to-fit-tires/
I hear Marathon Plus tyres are notoriously hard to fit.
The first time I ever removed a tyre in my life I took off a worn out Marathon Plus (that the bike shop fitted) and fitted a Marathon Extreme to replace it. Yes it was fiddly but having never done anything quite like it in my life I wasn't exactly an expert.
Add another vote for slow leakage which is normal. Something else I learned when I was new to cycling when my 70psi tyres seemed soft and had dropped to more like 30psi, over the course of a few weeks.