What Plank said. If the Bobro spring breaks, you're screwed.
My data is a bit old but I believe LT makes an absolute cowitness mount now because there was enough demand. I still prefer the 129, but that's me.
"And Shepherds we shall be. For thee, my Lord for thee. Power hath descended forth from thy hand, that our feet may swiftly carry out thy command. So we shall flow a river forth to thee and teeming with souls shall it ever be. In nomine Patris, et fili, et Spiritus Sancti. Amen."