In the OPs defense, this isn't really a matter of 'hard driving will kill anything', this is a matter of 'it will fail, just a matter of when' type thing.

In a group where guys tend to scoff at using Tamiya's bronze bushings in lieu of roller bearings, it's hard to defend a design that uses plastic to support two metal parts (hull and swing arm). For those who aren't familiar, it's an aluminum hull with a plastic bushing. Dan saw the short coming as soon as he cracked the box. We all looked at it and said 'yikes'.

The question is, whether you want to spend the asking price and still need to mod. The answer is, yes, if you want a T-34.