I will do that heelmoi..adjust fo a bit less droop. I already did that on the full length D8t.
I really haven't broken too many shafts considering the abuse administered
...I had a short period though where I broke several all within a few weeks of each other. I think sometimes they make bad batches out of lower grade steel or something. The Vorza truggy still has 1 rear Kyosho universal that has been on there for years!! The other paired Kyosho broke very fast....but it was a really hard hit. I recently purchased extra Kyosho unis to swap in whenever I break another shaft. I'll also get some new HB D817T universals once there out for a while. Right now they are really expensive because they're brand new...and I only see that 1 seller carries them.
I do feel though that most of my driveshaft breakages were partly due to over flexy arms...most breaks were from really hard landings.
...at the very least these updated stiffer arms will look better in the long run because they shouldn't get all saggy like grannies ta-ta's
Summit , HPI Apache SC
Vorza truggy, Tekno MT410
D8T-e, Tekno sct410.3