Sorry Volfy, I forgot about the "gadget" interest, and I can't argue with you on that point... I like gadgets as well.

alrc, I have a Rascal with an OS .46. It will go vertical for quite a ways too. But then I imagine tacking an extra 3 .oz on it (needlessly?) and I see it not going quite so far or quite as fast. Besides, a lighter plane flies better than a heavier identical plane due to a decreased wing loading which equates to more useable power from a given motor.

Of course, you're always free to slow that Rascal down a tad... You're buddy that also flies a Rascal will appreciate it.