Vanguard triggers are no worse a lot of others to work on...But, like someone else mentioned, when you adjust the sear engagement to where you want it sometimes the safety will not engage. This can be remedied by removing metal from the front of the trigger where the safety plunger contacts or reducing the diameter of the safety plunger...I've done it both ways. If you can do it yourself it's fine but if you are paying someone to do it it may not be worth it compared to a Timney.
"after the bullet leaves the barrel it doesn't care what headstamp was on the case"
"The 221 Fireball is what the Hornet could have been had it stayed in school"