I just finished extracting the RT88's & installing the Spektrum A7040's
Wow! What a world of difference & that's just on 6v.
The wheels still rub against the tubs, but the 7040's have enough grunt to overcome even that.
I really need to get my angle grinder out and take a few mil off the bottom of the struts and I should be good to go.
Don't want to push my luck with the wheels still rubbing against the tubs as they are.
Thanks for the heads up. These are by far the best retract servos for this plane and a perfect fit with no mods needed.