If you are looking for the "feel" you have with the UCANDO then yes, the mods are necessary. Because that plane offers BTOH power to weight and light wingloading...
Built stock, the Lanier Yak will give you either but not both depending on engine selection. 50cc will feel decently light, but P2W will not be there for the pull-outs you waant from low speed maneuvers. The 80's will be phenominal power, but not have the floaty feel.
The ZDZ 60 or Evolution 58 probably is the best engine selection for this aircraft stock.
I did get my standoffs today from [link=http://www.forgues-research.com]Forgues Research[/link]
Once again Roger... nice job!
They weigh 5.2 oz and that's pretty good considering how long they are 4.25"... (The stock 2.5" ones are like 3 oz...) When ya gonna start turning titanium Roger?
Maybe I'll get some engine mounting done before the weend...