The difference between 26" to 27" barrels and 27" to 28" is about trivial. However, 26" to 28" is just noticeable. You have to get into the 30's" before one inch makes a difference. That is, 31" to 32" is generally noticeable. The barrel length is part of a squared factor, so as length gets longer the factor grows much faster.
In the psychological realm, confidence/belief that the given gun or some of its attributes are unexplainably important trump facts. You could very well have a deep seated first learning that 28" barrels are to be much preferred.
I'd suggest that you save the money ONLY if you become convinced
that you can ultimately overcome a bias against 27" barrels.
If you are interested, post back and I will post some 27" vs 28" data.
DDA
