My 2p worth Hora..
Get a 56 SS put a 110 or 120 stem on it (preferably a 120)
Dales do feel big, they have a lofty feel about them. Some like that, some don’t. They do ride well, feel a bit flicky and yet stable.
Never ridden a PX roadie, but from what you’ve said and learned over the last few months on it, your dead feel and wobble suggests it’s not right for you. You could stick with it, I’d suggest you’d get bored very soon and stop riding it. Sell it whilst you can and seek out a Dale if thats what you’ve got your eyes on.
Neither will make you Gilbert BTW, for that to happen you need to put some miles and effort in learning how any bike rides then get a training regime sorted out to really enjoy Roadies. MTB’s they are not.
As for all the other too-ing and fro-ing on this thread, well it’s been quite a fun read.
2 pen’eth over.