This might be a bit like a "what oil should I use" post but am looking at getting rid of the hideous OEM shocks on 2018 SGS. Sick of being bounced off the seat, and no amount of adjustment seems to fix the problem. Im only 185cms and 86 KGs on a good day and ride one up most of the time. Having said that the Princess does jump on the back sometimes.
Ha ha, whoops, typo fixed. A Street Glide riding Pygmy !!!
Dunno if this helps you.
I emailed back & forth with Progresive in USA, i was 96kg at time and they said deff Not heavy duty on my fxst, i am now 110kg and still great, had on since 2013 , even towef a trailer around Oz in 2015. Still great, cant fault them, plus i put monotube front springs in.
Got me some Revo A shocks.
Don't they sell washers in Oz?