thats cool mate
Answers from what I know:
a) Some people just like messing with markers, use the wrong lube or use too much lube etc.
b) Nothing wrong with the design, the only problem with putting a screw through a solanoid comes from aftermarket grips. Some aftermarket grips are thinner et the top where the screws go through. Planet were aware of this and put a note under all the aftermarket grips on their website. Hybrid also put a note in with grips and supplied shorter ecrews but the older stocks didnt. I know loads of people who have done it and even one that worked for Rolls Royce. He knew about the problem and still managed it. It happens.
Nige
Ps. I am VERY biased but the guys are right, PLANETs aftersales is second to none. Next day delivery if you need spares too