Align T-Rex 550L Dominator Mainblade Hits Tail Blade(Tailstrike) during hard 3D?

On T-Rex 550L Dominator; the main blade and the tail blade look really close to each other, if you are not comfortable with that and worry that they may hit each other during hard 3D, here's the solution:
Change the tail boom from 550L's to 600's, here's the list for all what you need to get from the hobby shop or eBay:
1. T-Rex 600 Carbon Fiber Tail Boom ; H60T003XXW

2. T-Rex 600 Tail Boom Brace ; H60052A

3. T-Rex 600 Torque Tube ; H60119-1

4. T-Rex 600 Tail Control Rod Assembly ; H6NT001XXW

 By change the 4 items, the tail boom will be 76mm longer than the original 550L boom, the main blade will not be possible to hit the tail blade.
P.S. I do not change the boom to the longer one for T-Rex 600, because I don't think I will have this main blade tail striking issue, I am not a hardcore 3D pilot. :-)