Proboat Impulse 31 rudder on Shockwave 26

[Gopherboy6956]

I have a Shockwave 26" and I was looking at the rudder for the impulse 31... it looks like with (maybe) a tiny modification to the hole size on the metal impulse rudder, you could fit it on the shockwave.

Thoughts?

Shockwave Page - http://www.proboatmodels.com/Products/Default.aspx?ProdId=PRB0650
Impulse Page - http://www.proboatmodels.com/Products/Default.aspx?ProdId=PRB4250B

Shockwave rudder - http://www.horizonhobby.com/products/rudder-im26-PRB4217
Impulse rudder - http://www.horizonhobby.com/products/rudder-im31-PRB4264

Thanks!