Glue fusion or micro ring?

Right now I have a combo of pro tac (3 doubled hand tied wefts in the back) and silicon microrings (top back row and sides).  I have not lost any microrings and none of them have slipped any.  I just anchored the right side of my top weft track with a microring this morning as it was slipping.  I like the coverage and the extra hair I can get in with the weft/pro-tac install, but I can imagine it may be a little too hot in the summer (my head is used to having so little hair!).  Once the pro-tacs give out I will try a full install with the microrings.  If I am not happy with the coverage of the strands I will go back to combining the methods.

I have to wash my hair every other day (oily scalp and bonds become hard to hide) and use hair spray to make sure my thin hair covers the extension bonds, regardless of the method!

Monsterita, they've been in four days, two shampoos and two round
brush blow drys, with no slippage. I can tell these suckers aren't going
anywhere, and they're SOOO easy to put in and take out. My only concern
in a full-head installation would be them showing through the fine top
hair. In my opinion, though, their flatness makes them much easier to
hide than those other reducing-tube thingies.

I'm an extensions newbie and just wanted to put my two cents in for the
silicon-lined microrings on Amm's site. I didn't really like the heat-
reduction tube things (laffin) because I found them hard to put in, messy
to take out and lumpy in my hair. I received my microrings last week and
experimented putting a few in along the front. I got the very first one in,
first time, and it laid flat and has held perfectly (in very slippery, soft
hair), as have all the others I put in. I love it that you just give them a
little squeeze and they open right up, leaving no residue. I actually was
able to re-use one ring three times as I experimented with placement. I
still prefer wefts in my baby-fine hair because all the single strand
extensions tend to peek out, but for single strand, these new microrings
are the bomb! (And no burned fingers, either!)