I have a 3H, want a 4H and 5H - should I get the same make/model?

I have a bit of a dilema.  I'm a high handicapper, but am starting to figure things out (play a stretch of 4-5 holes close to par, making a few birdies here and there, but fall apart 2 or 3 holes a round). One of the things that I've "figured out" is that I love love LOVE my Cobra Baffler T-rail 3H.  Easily my favorite club, and I consistently hit it the same distance (185). I have Ping G20 irons and my 4i and 5i are very inconsistent. I'd like to get a 4H and 5H to replace them. My assumption is that it makes sense to get matching Cobras, right? Problem is that I'll have to hunt around used club sites to find them in a stiff flex.  Is there a benefit for hybrids to be the same make/model? If not, I'll just test drive some clubs at the local Golfsmith and PGA Superstore to see what fits.

I have the Cobra Baffler T-Rail and I wanted another hybrid, I brought the Cobra AMP Cell hybrid and love it. I hit it as well as my Baffler T-Rail, really can't tell the difference. I would just question your wanting all these hybrids so close together, a 3, 4 and 5. I would forget the 4 and just buy the 5H. Unless you are that good I don't think you will know the difference between the 3 and 4. Just my opinion.

I have a mix of hybrids.  I don't match at all.  Taylor Made Burner 3 (much older than the rest) and a Cobra AMP 3, Callaway Warbird 4 (my favorite), Calaway Xhot 5, Adams IDEA a12 2.

Love hitting my hybrids off tee's on shorter holes, and 2nd shots on par 5s.  Just love my hybrids period.  They make the game more fun for me