How about including a choice of pilots with On30 locos ?  Switching style pilots allow a shorter coupler to be used, which lessens the issues of coupling and uncoupling on curves.  Is it too radical to suggest that they could be compatible with Kadees ?  The McHenrys are OK, but Kadees are far more responsive, especially with under track magnets.   Dayveemac

Dear Bachmann,  How about making locos both in saddletank and tender versions?  Mechanism would be the same, making production costs far smaller and giving consumers extra choices.  I would suggest a 2-6-2, but a 2-4-2 would be plausible. Dayvmac