I personally don't care for paper tuning myself because I can eyeball a set up close enough to get started. I will usually just go right to bare shaft testing or group tuning. Paper tuning is too easy to trick for me to have a lot of faith in it. If you have poor form it is nearly useless and frustrating. If you have really good form it won't tell you much unless your rest is way off or you have fletching contact.
HOWEVER, I think you should find a new shop if it's possible. If he has never even heard of Eastons tuning guide I am going to guess he hasn't been to their school or workshops. I would question how he considers himself a pro if he has had no formal training to speak of? Or is he a national champion or certified coach? If not he is just another hick shop owner with an opinion. Not that that's bad, some really know their stuff and have been around the block a few times. But some are clueless and barely know how to order the right stock for their shop.
Now a days with so much info on the net and great forums like this one most of us know more than some of the shop owners that won't for whatever reason get on the internet and take a look around.
I can't believe none of the shops in my area use any of the new software for arrow selection yet. It is just so much better than looking at a chart and guessing, especially with all the different bows on the market now. I've been pushing it to a few of the shops in my area. I mean once you know how fast a set up will push a specific weight arrow they are very accurate at predicting the correct spine. They may not be perfect, but they are one heck of a lot better than guessing or using a cheesy online calculator. Or Lord forbid those crappy online charts for some of the carbon arrows.
And any shop that will talk smack about a proven design will have trouble getting my money. I don't really care for the WB rests, but they can be made to shoot just as well as any other rest. I have set up a few. While I didn't like messing with them they functioned just fine.
The shop I used to go to the guy was a very opinionated little old man. An EX marine so he didn't mind telling you how he felt

. However he knew his crap and was good at it. If he didn't like a product (he didn't care for drop a ways much) he just wouldn't carry them. If you asked he would tell you he didn't care for it and usually had an intellegent reason. Then he would tell you if that is what you wanted you could get one at Cabela's or another shop in the area.
He wouldn't hold it against you and he would even help you install it or tune it if you needed it. He just wouldn't waste his money stocking equipment he didn't have faith in. It's hard to argue with that sort of honesty. Sadly he had a heart attack while jogging[

][&o] a few years ago.
The new guy tries his best but at least admits he is in a learning process and doesn't try to act like he knows it all.
Paul