Incredible that this line went unclimbed all these years! Possibly was top roped many year ago, (old large hardware store bolt with washer on top) but with the loose flakes and the grainy grit I had to clean to make holds holdable, I would say it was over 20 years ago and was not bouldered.
That said, Its amazing! Great movement on now solid rock. Landing is not great but with a good spotter and a few extra pads it's safe enough. I put rope on old bolt and backed up with a small cam in crack to rehearse moves, falling on upper section could be bad.
Crux for me was getting out of second kneebar in last heuco and throwing up right for side pull/ear hold.
Hard to grade without fear factoring in, probably only V5 moves but actually sending felt a couple grades harder. A spotter might have helped..