Here is a summary of the different p30 sk pic the one that has the features that you want then find it here using the UPC code AVAILABLE CONFIGURATIONS
Part No. 730901K‐A5, UPC 642230253353 – P30SK, Subcompact, (V1) “light” LEM DAO, two 10rd magazines –
Part No. 730903K‐A5, UPC 642230253377 – P30SK, Subcompact, (V3) DA/SA, rear decocking button, two 10rd magazines –
Part No. 730903KS‐A5, UPC 642230253391 – P30SKS, Subcompact, (V3) DA/SA, ambidextrous safety/rear decocking button, two 10rd magazines –
Part No. 730901KLE‐A5, UPC 642230253414 – P30SK, Subcompact, (V1) “light” LEM DAO, three 10rd magazines and night sights –
Part No. 730903KLE‐A5, UPC 642230253445 – P30SK, Subcompact, (V3) DA/SA, rear decocking button, three 10rd magazines and night sights –
Part No. 730903KSLE‐A5, UPC642230253421 – P30SKS, Subcompact, (V3) DA/SA, ambi safety/rear decocking button, three 10rd magazines and night sights –

Sam - Try to rent, or at lest 'fondle' all the pistols you can, within the scope of the ones you are considering. Talk with friends and relatives, and read, read, read ... there are so many reviews available these days. Watch videos. I don;t think you could make a mistake, with any one you might finally choose. Remember, most of all, that you are buying a pistol that YOU like - not one that anyone else has to 'approve'.

Sam, this will really depend on your personal feature preferences. I would mosey on down to a local gun shop and handle a few and narrow it down first hand Sir.