+1
Info for the thread:
Way back, I chose the TMB30 (PJ, despite not really wanting the J pickup) because I figured out (don't remember how accurately) that the TMB30's P pickup location was proportionally the same as a full length P (see micguy's post above), while the other 30" basses, P or PJ, that I checked (don't remember which) were not, so they were proportionally more forward than a full length P, which I did not want at that time.
Another reason why the TMB30 sounds so good is the thick neck profile (thickness, not (nut) width). I didn't have a clue about that at that time, but I believe it now, having learned this bitter lesson from a Fender J.