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<blockquote data-quote="zenmetsu" data-source="post: 29599" data-attributes="member: 428">Yup.&nbsp; I noticed a big improvement using the KBDD blades on my 250, and they have considerably more surface area than the Align ones.&nbsp; Bigger is better (to a point).- - - Updated - - -get a photo from the side, with the tail blade and the main blades as close as you can get them.&nbsp; Top view is deceptive.&nbsp; Alternatively, if you can disconnect your blade grip's ball link, you can put the main blade parallel to the boom, and rotate the blade grip so that the blade swivels vertically... then you can see if there is any chance of it swinging down low enough to hit the tail.&nbsp; Even this is an over estimation since the blades flex and will never be able to have the length of a straight blade while under stress.Or just use string.&nbsp; <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile&nbsp; &nbsp; :)"&nbsp; data-smilie="1"data-shortname=":)" /></blockquote>

[QUOTE="zenmetsu, post: 29599, member: 428"] Yup. I noticed a big improvement using the KBDD blades on my 250, and they have considerably more surface area than the Align ones. Bigger is better (to a point). [COLOR="silver"]- - - Updated - - -[/COLOR] get a photo from the side, with the tail blade and the main blades as close as you can get them. Top view is deceptive. Alternatively, if you can disconnect your blade grip's ball link, you can put the main blade parallel to the boom, and rotate the blade grip so that the blade swivels vertically... then you can see if there is any chance of it swinging down low enough to hit the tail. Even this is an over estimation since the blades flex and will never be able to have the length of a straight blade while under stress. Or just use string. :) [/QUOTE]

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