A little change means a lot. When I built my Falconar F-12 I used a different LG than what was on the plans. It should have been about 2" longer. When I made a 3 point landing the tailwheel would hit first and slam the mains on with a resulting bounce. I never changed it. Just got used to putting the top of the nose on the end of the runway for a 3 point, if any higher, you made a mistake. When checking someone out in the F-12 I always had to talk them thru the first landing.