This is a review from owning Dynothane Sport Series and Dexter SST 5

Dexter SS5:

What I liked about it:
The thought of being able to have a perfect slide is intriguing. With the four different soles and 4 different heels you can make the perfect slide for any type of condition. For me to achieve a good slide for a tweener I usually ended up with the number 6 sole and the heel with grooves. This created a nice balance slide. The S8 sole was slippery but was great on sticky synthetic approaches but rarely needed it. The S4 red sole was nice for wanting to be stable at the line. Unfortunately the quality of this particular sole does not last very much. I did end up having to replace it 3 times. A wire brush may be needed with this due to getting too "smoothed out" and may cause slippage for power/cranker players. For the extreme halt and plant slide, the S2 sole isn't that much different then the red one I found, but slides very little. The real ridged heel is great to use with the red and brown sole. Attempted to try the S6 with it and it made me have a slide/jerk stop that I didn't like. The smooth heel to me wasn't as stable as the heel with the ridges in it. The felt heel is designed for those that really want to either achieve a slide without any type of brakes. Interesting to use this with the s 4 and s 2, beyond overkill slide if you attempt the s 6 with it and try it with the s8 you better have some good balance or you might at well bowl in socks.

Somewhat comfortable, good strong shoelace. The tongue is flatter then a lot of the other entry level shoes.

What I disliked:

Start with the poorly built and designed push foot. The intent of the balance shoe foot is to have stability at the line. The front of the shoe is made with sticky Goodyear rubber. This took quite some time to get used to. For being a 5 step player, the 4th step at times I got stuck at the approach and lost consistent footing. After wearing them in for some games it was fine. The soles also required some braking in. Especially with the horrible s4 sole. After some many games it was better but after months they wear out. The S8 sole also took a little bit of a break in period but not a lot. The s2 and s8 were more consistent, not as much of a break in period. The poorest part of the balance shoe is the poor way of attachment to the shoe. Just typical hot glue it looks like. If your a bowler that keeps the push off foot in the air on your release, then not a problem. If you drag it at all, it may break open. That is what happened to me.

Dynorooz sport series:

What I liked:
Felt like slippers when I put them on. very comfortable. The deerskin sole was fantastic. no break in period. The smooth heel was consistant with this sole. The felt sole it came with slid a ton. Too much for me. It's like having easy slide on it. The ridged one it came with had a nice hault to it. I prefered the smooth one but there wasn't that much jerkiness with the sole, I liked it but I prefered the smooth one. The toe cap on the balance shoe is a very clever idea. No more worrying about damaging your shoe on your slide, this will protect your balance shoe. Ordered the chrome sole for this shoe, looking forward to trying this sole out.

What I dislike:
Well, the soles and heels for one. Not a big deal with the heels, but the "stopper" thing in the middle of it really prevents from trying a Dexter heel on it unless you very good at carving or cut it off. If anything, it's a good indicator when you need to replace the heel. The soles is more concerning. I really dislike the "stitched trime" on the shoe. Basically, you have to either take off your shoe to change soles or place the sole just right to make it even. I don't see the point of this. Also you can use new Dexter soles or the Dynoroos replacement soles on it but you really have to trace it out just right. The Sport series shoes for 100 bucks could have at least come with 3 soles and 3 heels. I converted a S4 Dexter sole for my Dynothane and have to trace it out just right. The front of the shoes are a little tight and the tounge is overly padded. Not much of a gripe there, just took a little bit to get used to.