As an aside and despite the hundreds of hours and numerous starts I've put into FO4, I only just today discovered an extremely valuable method of farming XP to get your level up, at least early to mid game. I already twigged that if you rapidly hit the Enter key when making several of the same item at a workbench, you get a multiplier kicks in which greatly increase the XP for each item. This is quite separate to the Idiot Savant procs, which I haven't as yet enabled in my current high Int play through. However I also discovered this also kicks in when crafting items in the workshop. Select something like fence posts or ashtrays and proceed to walk back in a straight line, rapidly hammering the Enter key. Eventually I was getting something like 53XP per ashtray, went from L19 to L21 in about 25 minutes. Most of the time is spent walking forwards afterwards scrapping the items and of course you only get 50% of the material (wood or metal) back used to create so overuse could result in running out. However ideal to finish off a level up when you're short by a couple of hundred points.