That going to depend on the brand, Most Blades have different size spigots or shaft fitting most are brand specific.
If you want to avoid this in the future go with Ke Nalu all of the shafts , blades and handles can be ordered separately and are all interchangeable.
If you are not racing just surfing the Xtuff is the go not race light but not heavy at all really strong made for Hawaiin conditions perfect flex for older shoulders and surfing.
If you are use to a full on race shaft stiffness go with the Xtuff S a slightly stiffer version of the surf shaft without being mega stiff.
Also if you are just surfing the Wiki blade is like a Diesel engine more power per stroke so get on the the wave in 4 strokes instead of 5 be earlier in your set up.
Looks slightly different to the race blade but much better foe surfing..