so what is the best balancing method

This is what I like about this site. I really don't know a lot about balancing and stuff like that. I get on here asking questions about what is best as I have had a problem with vibration issues and would like to get this right before I make a 2000 mile trip with these cars and some people say that I need road force balancing and some say I need spin balancing. And now RRR says that if I am dying to throw money at something, go for the road force stuff. I believe a lot of people on this thread has said that road force is the best. so what is it. to someone who has had a problem with balancing who do you believe.
The 2 biggest tire places around me is Tire Discounters and Bob Sumerel Tire co. They both use road force. The guy I have trusted with my car for years does the spin balance and does not use sticky weights anymore because they come apart. So I might just have them mounted and put a quart of antifreeze in each tire and be done with it. lol. At least I used this method for 30 years in my semi and never had a problem. I guess I will have to do more digging as to what is best because right now as it stands on here, its like a 50/50 chance of getting it right.