[quote name='wrinkleygit' post='942554' date='Sep 1 2010, 07:51 PM']Check the position of the lower strap button,later thumbs have the button on the centre line of the bass early ones especialy with the recessed strap locks have them positioned further round almost mirror image of the jack socket if this makes any sense,the way a thumb hangs on its strap will make a big difference to neck dive, my 93' thumb had both buttons fitted when I first had it ,the centre pos button was a major factor in contributing to neck dive,I always use the other button when playing on a strap,, thumbs are great basses & second hand values don't do them justice,either start haggling at the shop or if you fancy a 5 string josh has one for sale that looks like a bargain.Buy one now while they are cheap, look at the price of a new one for comparison, all the best, mike b.[/quote]
so if you moved the strap lock this might make a difference anyway??