TS-1 Protti Information

My TS-1 has a Road Tune by Taffspeed, and was specced with a MB DevTour for touring. The DevTour is nearly done, it’s done me proud but the muffler rivets are totally ovalised and it’s held together with Ty-wraps while I finish my Euro trip. I like the sound of the Protti, but there’s only one post on here about it and not much else. Being in Europe I need something from Rimini, SC or SIP.
Does anyone have any long term history of the Protti, a friend with an SST265 has cracked and welded his Casa expansion twice, is that common for the Casa exhausts?
TSR evos are available at SC but out of stock as they are everywhere.
I could go back to my Avanti but I like the look and the ride of the expansion pipe, apart from the 4-5K rpm stuttering but through that it rides and pulls beautifully.
Does anyone have any long term history of the Protti, a friend with an SST265 has cracked and welded his Casa expansion twice, is that common for the Casa exhausts?
TSR evos are available at SC but out of stock as they are everywhere.
I could go back to my Avanti but I like the look and the ride of the expansion pipe, apart from the 4-5K rpm stuttering but through that it rides and pulls beautifully.