Originally Posted by bhp1404
I am not a big fan of the terms "sgi" and "gi" because there is not really a difference and there is no standard for what "sgi" and "gi" are. ...
Go to a demo day and hit some clubs that you think are out of your range and you will be shocked how easy to hit and forgiving they are. Its why i chose my Nikes over some other "gi" clubs.
When Sand Trappers refer to SGI and GI - and Player's - they normally are using the Golf Digest hotlist classifications for golf clubs. Hotlist classifications are based (ROUGHLY) on market niche. Players clubs are those designed for pro and amateur competition players, SGI are very user-friendly clubs that tend to launch the ball very high, and the GI are in between (many better players opt for GI clubs because they blend "forgiveness and workability" as the marketing guys say.
Each Hotlist classification combines one or more of the Maltby Playability Factor (MPF) categories. A clubs (usually irons) MPF rating score is determined by a mathematical analysis of (usually) the 6-iron head characteristics from a given set model. Look up club designer Ralph Maltby's website for details.
So, there is method behind the MPF categories, and to a lesser degree, the Hotlist categories.
The categories serve as a rough estimate of what type of clubs you want to try out. Several months ago I did an analysis of the different "current model" irons available from the different mainline manufacturers. I came up with roughly 50 current iron models, plus a couple dozen recent iron models which were still popular. So, the SGI and GI classifications prevent you from having to try out 70 different iron models to narrow it down to two or three for consideration.
It appears you have been playing for awhile. This would be an excellent time to get an overall fitting to see what type of clubs are best suited for your game. One key thing to determine is what type of shaft(s) are best suited to different parts of your game.
In your case, the AP1 irons would be an excellent place to start. Several stock shafts available, plus more upgrade shafts.
Some golf shops offer comprehensive fittings (takes a couple of hours) in which the fitters sample all aspects of your game - woods, hybrids, irons, wedges, putter. Then, you can get some idea of your "ideal" bag mix. If you don't have $2K to buy everything all at once, no big deal. You can plan for the future. Also, some part of your game may be OK as is, or may only need a tweak such as thicker grips.