I have a set of i5's that manage to wind up in the bag from time to time.
A pretty forgiving iron, just not the best looking.
Hit some BeCu's at a demo day once, those were some sweet sticks!

Rickochet

The ISI is a totally different iron. IMHO... even uglier than an Eye2. The “+ no +” version of the the Eye2 is the Eye2+ model but with square grooves like the old eye 2

    Rickochet
    Here's a picture of the Ping ISI. IIRC, it was a slightly bigger head than the Eye 2, and was supposedly
    Karsten's favorite model....

        fatshot

        That is the IsI K model, which is slightly larger than the IsI. More forgiveness was the claim for the K model.

            sdandrea1 That is the IsI K model, which is slightly larger than the IsI. More forgiveness was the claim for the K model.

            Did the ISI precede the Eye2 or was is s supposed improvement?

                Rickochet
                This is from memory, so I could be off a bit..

                1. Karsten I, II, III were first
                2. Eye
                3. Eye 2
                4. Eye 2 +no+
                5. Eye 2 +
                6. IsI
                7. IsI K
                8. ZING
                9. ZING 2
                10. Then they started the heads with the oval cavity weight, i3, i3 blade, i3 OS, i3+, i5.....the G series started sometime in there as well. I think the G2 replaced the ZING 2.

                  This was from WRX back in 2008.

                  i5 2007

                  G5 2006-07

                  G2 2003-06

                  G2 HL 2003-06

                  S59 Tour (w/ferrule) 2003

                  i3+ 2002-03

                  I3+ BLADE 2002-03

                  S59 (no ferrule) 2002

                  i3 Blade 1999-01

                  i3 O-Size 1999-01

                  ISI 1996-99

                  ISI BeCu 1996-99

                  ISI Nickel 1996-99

                  ISI-K 1996-99

                  Zing 2 1994-96

                  Zing 2 BeCu 1994-96

                  Zing 1992-94

                  Zing BeCu 1992-94

                  Eye2+ 1990-98

                  Eye2+ BeCu 1990-98

                  Eye (Patented) 1985-89

                  Eye2 (Pat. No.) 1984-90

                  Eye2 BeCu 1983-90

                  Eye2 (Pat. Pending) 1982-84

                  Eye (Pat. No.) 1980-85

                  Karsten I (Made in USA & nbr on sole) 1977-84

                  Karsten II 1977-84

                  Karsten III 1977-84

                  Karsten IV 1977-80

                  Karsten I (US.Pat. & iron nbr on sole) 1977

                  Karsten I (Patent No. with dot) 1974-77

                  Karsten I (Patent pending with dot) 1972-74

                  Karsten I (Patent pending/no dot) 1968-71

                  2 years later

                  sdandrea1

                  Wow, this old thread lives. FWIW I have a set of nice Ping Eye 2+ 3 thru SW orange dot that need a new home. Reamed for .370 shafts.

                    The only I’ve tried are Raptures. They are great. Like others, I’ve lusted for Beryllium Copper, but have never hit them.

                      The longest I played a set of pings about 3 years was the g10s. Also liked g25s

                      I've been using Ping irons for quite a few years - had a set of S56s (from new) that I used for something like 10 years, and replaced them last year with i210s.

                      Have G2's that I played a lot this year. Have the G irons that I just got shortened and lie adjusted. Now everyone is doing it. Also had Raptures.

                      sdandrea1 Sending my black dot Eye 2+ set back to PING for a bend up to blue and a retumbled/paint fill. Pics when they get back.

                      What's the tab on doing that per club ? Curious....

                          Quoted me $118 to shorten, re grip, and alter to Orange Dot for 8 clubs. That's $14.75 per. Don't know if is because I am the registered owner or not. That includes new grips.