Equipment recommendation

i'm trying to figure out if reducing trail also makes 'tucking under' of the front wheel more or less likely. i reckon probably so, as fear of this is what really prevents me turning faster as it always results in my launching off the bike and hurting my wrists.

This has puzzled me for a while, and i'm not sure if there is a simple answer. I can tell you that i have a zero rake fork and do not have the 'tucking under' problem. However if i put on a fork with a bit of rake (ie less trail) i start to get the problem - so that seams to suggest it does.