1. IIRC I think Manike mentioned the original valve body would need to be used with new internals in the old markers.
2. The reason the Pump to bolt screws don't thread into each other is simple ... different threading patterns. No big issue though, just use the appropriate screws for the bolt.
3. the old Mav's detent can be replaced with a short section of LP (aka 'cocker) tubing in the detent slot that runs across the body just forward of and below the feed neck. And correct me if I'm wrong here, but it looks like the new Trracer still has the groove where the old body detent would go as well.
Otherwise, thanks for the vid, great job.
Looks like I'm gettin' one for sure now.
Dave G I tinker, therefore I'm broke!
Further, now that I've found the MCB BST ... I've recently sold my house and moved under the bridge down the road ... but I've got lots of markers.
I have no life, I'm just a dad in constant flux between baby naps and 8yr old tantrums.