Yep start over. It is a pain but you will get the best results in the end taking the slightly longer route. Take what you learned already and apply it to working up the new load.
Talley-go is a favorite. I like some of the Dan Thompson calls as well....pc-3 and pc-4. I have a custom howler that sounds really good. An old boy out of SD was selling them at the Stock show in Rapid City. Made out of kitchen counter top...Formica I believe. Sounds pretty nice and something...
Yeah it still has the cds certificate and I purchased it new for about $1100. I hunt all kinds of elevations so I never used the certificate. Only used it one season. I think you can buy them clearanced now at midway. I can't afford to lose too much on it.
VX-6 3-18x50 has been working well for me. Make me an offer. It is the older version with the covered windage turret. I also have an huskemaw 5-20x50 as well. Which is also an older model. I'm looking to sell both and upgrade.