Aura HD new to aura hd.. (annotation/fixed width fonts)

hi people of the world :) (sorry for my english)
i am new to this forum and i just bought couple of weeks ago an Aura HD (my first ereader)
i haven't patched it or done any mod or tuned anything yet..
my software version (firmware ?) is: 2.5.0 (4/9/13).

my impressions;
i am pleased with the build quality and the size and the definition of the screen and the backlight feature, battery life (which is still at 93%)..

But,
i am very disappointed with the kobo original reader, taking annotation with a capacitative screen lack the precision and makes the operation very sluggish not to mention that it is very slow (wonder if all the reader are this slow), i also experienced the very annoying bug of "not being able to take annotation inside chapter of kepub files".., also experienced some freezings with nickel..

because for me, taking annotations, exporting annotations, and maybe syncing annotations are very decisive features. (i was going to buy a sony prs 1 with resistive + stylus, but its not available in my country)..

my question:
1: are there other readers available that have good annotations feature ?
haven't tried (coolreader and koreader)

so please feel free to give me advice that will help me make annotations a seamless feature in my reading experience.. i dont care for other fancy stuff or going trough with converting ebooks as long as i am able to take annotations and export them..

2: i also need very bad to be able to use monospaced fonts (fixed width) since i need to read schematics drawn with ascii art..
is there a converting trick (txt>pdf?) that could could help keeping monospaced fonts or isthere any other way ?

thanks :)