Who is Otto?
Would really like to find out about this ABS retrofit thing.
The question of retrofitting accessories has much importance, imho.
In my agonizings over picking out a 'trep, and comparing it with the 300M, I have looked at dozens in NJ and NY.
I even flew my Mooney to Virginia to see one.
Basically, there are many SE's out there, all of which are plain-jane with VERY little equipment.
About one in 10 or 20 is an ES and most of those are loaded.
I am now thinking I want a dark red one, and finding a dark red ES is really looking for a needle in a haystack. Hence retrofit.