Is it normal for the strum box pickup location to be forward of the mast like I described?
On most boats, (yours for example), where is the strum box location relative to the mast?
And is it very likely a strum box that's too big to be pulled out of that access pipe would have been set in there before the sole was glassed? Because I see no other way to get to that area short of cutting a hole in the shower pan fiberglass... I'll mess with it again today and try twisting the hose to see if whatever is on the other end rocks round (e.g. maybe just snagged and not really permanently stuck back there).